ORCID Profile
0000-0002-5143-3549
Current Organisations
Murdoch University
,
The University of New England, Australia
,
University of New England
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Publications
Oxalate nephropathy in a laboratory colony of common marmoset monkeys (Callithrix jacchus ) following the ingestion of Eucalyptus viminalis
Publisher: Wiley
Date: 07-2011
DOI: 10.1136/VR.D2645
Abstract: Seven common marmoset monkeys (Callithrix jacchus) from a laboratory colony of 17 died over a period of eight months. Death of six of these monkeys was attributed to kidney failure from an oxalate-induced nephropathy. The epidemiology of this outbreak suggested an exogenous source and there was strong evidence that the source was bark and leaves from an Eucalyptus viminalis tree. Branches of this tree were introduced one month before the first death. The branches were removed one month after deaths commenced, but deaths continued for another five months. Urinalysis of all surviving marmosets at 80 and 122 days after initial contact with the E viminalis branches suggested that these monkeys had renal impairment. In the cases described here, the eating behaviour of common marmosets apparently exposed the animals to toxic levels of oxalate in the bark and leaves of an E viminalis tree.
The first phenetic analysis of species limits in Bertya (Euphorbiaceae)
Publisher: CSIRO Publishing
Date: 2007
DOI: 10.1071/SB06019
GC–MS ‘chemophenetics’ on Australian pink-flowered Phebalium (Rutaceae) using herbarium leaf material demonstrates phenetic agreement with putative new species
Publisher: Elsevier BV
Date: 08-2020
Floral ontogeny and gene protein localization rules out euanthial interpretation of reproductive units in Lepironia (Cyperaceae, Mapanioideae, Chrysitricheae)
Publisher: Oxford University Press (OUP)
Date: 30-05-2013
DOI: 10.1093/AOB/MCT111
Validation of two informally named species of Melichrus (Ericaceae: Epacridoideae) from north-eastern New South Wales.
Publisher: Royal Botanical Gardens and Domain Trust
Date: 15-12-2020
DOI: 10.7751/TELOPEA14704
Abstract: Two narrowly endemic, endangered species of Melichrus (Ericaceae subfam. Epacridoideae) from north-eastern New South Wales currently bearing phrase names are formally named and described. Melichrus hirsutus J.B.Williams ex H.T.Kenn. & I.Telford is validly published more than 50 years after the first herbarium specimens were collected. Melichrus gibberagee J.B.Williams ex H.T.Kenn. & J.J.Bruhl is also described as new. Notes are provided on the distribution, habitat and conservation status of both species. An updated key to Melichrus species in New South Wales is provided.
Historical biogeography ofBreynia(Phyllanthaceae): what caused speciation?
Publisher: Wiley
Date: 16-04-2015
DOI: 10.1111/JBI.12517
There’s gold in them thar hills! Morphology and molecules delimit species in
Publisher: CSIRO Publishing
Date: 09-06-2022
DOI: 10.1071/SB21014
Abstract: Golden everlasting paper daisies in the genus Xerochrysum Tzvelev are iconic Australian native plants grown worldwide. The X. bracteatum species complex has been regarded as taxonomically confusing and in need of revision for over 60 years. We applied morphological and molecular analyses to delimit species, detect common ancestry among populations, and identify putative hybrids in the genus Xerochrysum (Asteraceae: Gnaphalieae). Multiple lines of evidence provided strong support for the recognition of new taxa. Here we describe the following 11 new species: X. andrewiae T.L.Collins & J.J.Bruhl, X. berarngutta T.L.Collins & I.Telford, X. copelandii J.J.Bruhl & I.Telford, X. frutescens J.J.Bruhl & I.Telford, X. gudang T.L.Collins & J.J.Bruhl, X. hispidum T.L.Collins & I.Telford, X. macsweeneyorum T.L.Collins, X. murapan T.L.Collins & I.Telford, X. neoanglicum J.J.Bruhl & I.Telford, X. strictum T.L.Collins, and X. wilsonii T.L.Collins, reinstate Helichrysum banksii A.Cunn. ex DC. (as X. banksii (A.Cunn. ex DC.) T.L.Collins & I.Telford), lectotypify X. banksii and X. papillosum (Labill.) R.J.Bayer, and recircumscribe X. bicolor (Lindl.) R.J.Bayer to include X. halmaturorum Paul G.Wilson and some populations of X. bracteatum sens. lat. from mainland South Australia and Victoria. We also provide revised descriptions of all taxa in the genus, their conservation status, a dichotomous key, tables distinguishing closely related taxa and distribution maps.
New chromosome numbers in Homoranthus (Myrtaceae: Chamelaucieae) and notes on their taxonomic utility
Publisher: CSIRO Publishing
Date: 2008
DOI: 10.1071/SB08036
Abstract: Diploid chromosome counts are reported for the first time for 23 species of Homoranthus (Myrtaceae) and published counts are confirmed for a further three species. H. wilhelmii (F.Muell.) Cheel was determined as having 2n = 14, which contrasts with an earlier report of n = 6 for the species. Dysploidy appears to be common within the genus, with diploid chromosome numbers of 2n = 14, 16, 18 and 20 being recorded. There was no evidence of recent polyploidy within Homoranthus nor of any infraspecific dysploidy. Chromosome numbers appear to be a useful taxonomic tool to confirm the distinctness of some morphologically similar taxa but may be of limited use in estimating phylogenetic relationships.
The dingo (Canis familiaris) as a secondary disperser of mycorrhizal fungal spores
Publisher: CSIRO Publishing
Date: 2023
DOI: 10.1071/WR22057
Phylogeny reconstruction of Callitris Vent. (Cupressaceae) and its allies leads to inclusion of Actinostrobus within Callitris
Publisher: CSIRO Publishing
Date: 2010
DOI: 10.1071/SB09044
Abstract: Relationships between Callitris, Actinostrobus and Neocallitropsis, members of the southern hemisphere ‘callitroid clade’ (Callitroideae sensu Gadek et al. 2000) of Cupressaceae, are estimated using a database of 42 morphological and anatomical characters. Callitris is paraphyletic, with Actinostrobus being closer to a large well supported clade of 15 Australian species of Callitris than are C. baileyi, C. macleayana and the New Caledonian taxa. The New Caledonian unispecific endemic, Neocallitropsis, is sister to the clade comprising all Callitris and Actinostrobus species. There are marked differences between this estimate of the phylogeny and two recent estimates based on nuclear encoded DNA sequence data and non-molecular data, respectively, but some simlarities to the molecular estimate are highlighted and lead us here to formally include Actinostrobus within Callitris. Further molecular data are needed to test these results and explore the cause of the conflict between these estimates of the phylogeny within the group, and the status of Neocallitropsis.
A new classification of Cyperaceae (Poales) supported by phylogenomic data
Publisher: Wiley
Date: 25-06-2021
DOI: 10.1111/JSE.12757
Abstract: Cyperaceae (sedges) are the third largest monocot family and are of considerable economic and ecological importance. Sedges represent an ideal model family to study evolutionary biology due to their species richness, global distribution, large discrepancies in lineage ersity, broad range of ecological preferences, and adaptations including multiple origins of C 4 photosynthesis and holocentric chromosomes. Goetghebeur′s seminal work on Cyperaceae published in 1998 provided the most recent complete classification at tribal and generic level, based on a morphological study of Cyperaceae inflorescence, spikelet, flower, and embryo characters, plus anatomical and other information. Since then, several family‐level molecular phylogenetic studies using Sanger sequence data have been published. Here, more than 20 years after the last comprehensive classification of the family, we present the first family‐wide phylogenomic study of Cyperaceae based on targeted sequencing using the Angiosperms353 probe kit s ling 311 accessions. In addition, 62 accessions available from GenBank were mined for overlapping reads and included in the phylogenomic analyses. Informed by this backbone phylogeny, a new classification for the family at the tribal, subtribal, and generic levels is proposed. The majority of previously recognized suprageneric groups are supported, and for the first time, we establish support for tribe Cryptangieae as a clade including the genus Koyamaea . We provide a taxonomic treatment including identification keys and diagnoses for the 2 subfamilies, 24 tribes, and 10 subtribes, and basic information on the 95 genera. The classification includes five new subtribes in tribe Schoeneae: Anthelepidinae, Caustiinae, Gymnoschoeninae, Lepidospermatinae, and Oreobolinae.
MakingCarexmonophyletic (Cyperaceae, tribe Cariceae): a new broader circumscription
Publisher: Oxford University Press (OUP)
Date: 14-07-2015
DOI: 10.1111/BOJ.12298
Reliable analysis of volatile compounds from small samples of Eucalyptus magnificata (Myrtaceae)
Publisher: CSIRO Publishing
Date: 2018
DOI: 10.1071/SB18005
Abstract: Phytochemistry is a source of data for plant systematics. This tool has much more value if herbarium specimens can be used without major damage and if results are comparable with fresh s les. A modified method for the solvent extraction of eucalypt leaf oils for phytochemical analysis and chemotaxonomy studies, including historical herbarium s les by gas chromatography–mass spectrometry (GC-MS), has been statistically assessed using Eucalyptus magnificata L.A.S.Johnson & K.D.Hill leaves. Leaf s le size was reduced by a factor of 250 to minimise damage to herbarium specimens, reduce solvent volume and simplify preparation of solvent extract before analysis. Leaf s ling treatments assessed the effects of the number of leaves and post-harvest air-drying on variation in components in the solvent extract. The results showed no statistically significant effect of leaf mass or the number of leaves used in GC-MS analyses on the precision of the measurements, but a significant difference among treatments for some oil constituents, particularly 1,8-cineole. Most differences in terpenoid concentration were due to variation among plants rather than extraction treatments. Extracts from air-dried herbarium leaves up to 44 years old were directly comparable with those from fresh leaves. Solvent extraction in 2 mL GC-MS vials of ~0.5 cm2 (16 mg) of leaf material, using fragments of fresh or air-dried leaves, drastically reduced s le and solvent volumes and showed that s ling from E. magnificata herbarium specimens for chemotaxonomy and chemotyping is a valid method, enabling broader s ling with much lower costs than for traditional fieldwork collections.
Molecular and morphological analyses support recognition of Prostanthera volucris (Lamiaceae), a new species from the Central Tablelands of New South Wales
Publisher: CSIRO Publishing
Date: 08-02-2023
DOI: 10.1071/SB22017
Abstract: Research into the systematics of Prostanthera recently revealed close evolutionary relationship among P. phylicifolia sens. str., the critically endangered P. gilesii, and a population of uncertain identity from the Central Tablelands of New South Wales (NSW), Australia. Previous analyses were unable to establish whether genetic boundaries separated these taxa. This study assessed species boundaries among these three taxa by using a combination of single-nucleotide polymorphisms (SNPs) s led at the population-scale and multivariate analysis of morphological characters. Ordination, model-based clustering, F-statistics, neighbour-network analysis, phylogenetic analysis, and ancestry coefficient estimates all provided support for discrete genetic differences among the three taxa. Morphological phenetic analysis recovered congruent morphological clusters and identified a suite of corresponding diagnostic characters. This congruence of molecular and morphological evidence supports the presence of three independently evolving lineages, two of which correspond with the previously described P. gilesii and P. phylicifolia sens. str. The third taxon, represented by a single population from the Central Tablelands of NSW, is here described as P. volucris R.P.O’Donnell. A detailed description, diagnostic line drawings and photographs are provided. We evaluate P. volucris as satisfying criteria to be considered Critically Endangered.
Crosslandia setifolia is a partly monoecious species of Fimbristylis (Abildgaardieae: Cyperaceae)
Publisher: Magnolia Press
Date: 26-03-2019
DOI: 10.11646/PHYTOTAXA.399.2.6
Abstract: While the limits of Fimbristylis Vahl (1805: 285) are contentious (Goetghebeur & Coudijzer 1984, Gordon-Gray 1971, Lye 1971, 1973), particularly with regard to the inclusion of Abildgaardia Vahl (1805: 296) within Fimbristylis, all current data support the derivation of Crosslandia W.Fitzg. (1906: 9) from within Fimbristylis (Ghamkhar et al. 2007 Hinchliff & Roalson 2013, Reutemann et al. 2018, Semmouri et al. 2018, Roalson et al. 2019). Crosslandia was described as a monotypic genus in 1906 by Fitzgerald, with more details provided in 1918, where he distinguished Crosslandia from Fimbristylis in having monoecious spikelets and “…the position and structure of the female spikelets.” This is clearly a specialized, derived condition from the typically hermaphroditic flowers in monomorphic spikes of Fimbristylis, and it is not, in itself, particularly surprising that monoecy has been derived within Fimbristylis. This has been found in other Cyperaceae genera, including Eleocharis Brown (1810: 224) where there are multiple species with dimorphic inflorescences with monoecious spikes derived from the more typical hermaphroditic flowers in monomorphic spikes (Roalson et al. 2010). In addition, Clarke (2005) found that monoeicy is not always present in specimens referred to Crosslandia setifolia. For these reasons, we provide a new name in Fimbristylis to replace Crosslandia setifolia W.Fitzg. (1906: 9).
Anthelepis, a new genus for four mainly tropical species of Cyperaceae from Australia, New Caledonia and South-East Asia
Publisher: CSIRO Publishing
Date: 2019
DOI: 10.1071/SB18047
Abstract: A new genus, Anthelepis R.L.Barrett, K.L.Wilson & J.J.Bruhl, is described for four Cyperaceae species from mainly tropical areas of South-East Asia, New Caledonia and Australia. The relationships of the three previously described species have been much-debated. In recent decades, they have most commonly been placed in either Schoenus L. or Tricostularia Nees ex Lehm., but molecular phylogenetic data have demonstrated that they are not closely related to either genus and a new generic name is required. The following three new combinations are made: Anthelepis guillauminii (Kük.) R.L.Barrett, K.L.Wilson & J.J.Bruhl (based on Schoenus guillauminii Kük.), A. paludosa (R.Br.) R.L.Barrett, K.L.Wilson & J.J.Bruhl (based on Chaetospora paludosa R.Br.) and A. undulata (Thwaites) R.L.Barrett, K.L.Wilson & J.J.Bruhl (based on Cladium undulatum Thwaites). One new species, Anthelepis clarksonii R.L.Barrett, K.L.Wilson & J.J.Bruhl, is described from northern Queensland, Australia, as distinct from A. undulata. Full descriptions, illustrations and a key to species are provided. All species are confirmed as having C3 anatomy.
Myrmecochory in
Publisher: CSIRO Publishing
Date: 16-11-2021
DOI: 10.1071/BT21023
Abstract: The diaspores of Lepidosperma Labill. (Cyperaceae) have thickened perianth members persistent at the base of the fruit, which are generally assumed to form a unique type of elaiosome but this assumption has not been tested rigorously. We tested whether the perianth provides a lipid-rich food reward and improves diaspore removal by ants in three species of Lepidosperma. We measured (i) the lipid and fatty acid composition of the fruit and perianth of two species of Lepidosperma, and of the seed and aril of two species of Acacia (known myrmecochores), (ii) the relative attractiveness to ants of the perianth in three species of Lepidosperma, and (iii) the relative attractiveness to ants of the diaspores of the same species of Lepidosperma compared with the two species of Acacia. We found that (i) Lepidosperma diaspores show traits consistent with myrmecochory, particularly the high lipid content (∼12–60%) and fatty acid profile of perianth material, (ii) isolated perianth members were removed in greater numbers over all times than were diaspores only (i.e. with perianth removed) in two species of Lepidosperma (n = 100, P = 0.035 and 0.047), whereas the difference was equivocal in the third species (n = 100, P 0.05), and (iii) Lepidosperma and Acacia diaspores were removed in similar numbers over time (n = 100, P 0.5). Seven species of diaspore-removing ant were observed, with Rhytidoponera metallica accounting for ∼50% of observed removals. We conclude that the perianth members of Lepidosperma are an elaiosome that provides a lipid-rich food reward.
Chromosome size matters: genome evolution in the cyperid clade
Publisher: Oxford University Press (OUP)
Date: 07-11-2022
DOI: 10.1093/AOB/MCAC136
Abstract: While variation in genome size and chromosome numbers and their consequences are often investigated in plants, the biological relevance of variation in chromosome size remains poorly known. Here, we examine genome and mean chromosome size in the cyperid clade (families Cyperaceae, Juncaceae and Thurniaceae), which is the largest vascular plant lineage with predominantly holocentric chromosomes. We measured genome size in 436 species of cyperids using flow cytometry, and augment these data with previously published datasets. We then separately compared genome and mean chromosome sizes (2C/2n) amongst the major lineages of cyperids and analysed how these two genomic traits are associated with various environmental factors using phylogenetically informed methods. We show that cyperids have the smallest mean chromosome sizes recorded in seed plants, with a large ergence between the smallest and largest values. We found that cyperid species with smaller chromosomes have larger geographical distributions and that there is a strong inverse association between mean chromosome size and number across this lineage. The distinct patterns in genome size and mean chromosome size across the cyperids might be explained by holokinetic drive. The numerous small chromosomes might function to increase genetic ersity in this lineage where crossovers are limited during meiosis.
Morphological data indicate the subspecies of Leionema elatius (Rutaceae) are not conspecific
Publisher: Royal Botanical Gardens and Domain Trust
Date: 16-12-2020
DOI: 10.7751/TELOPEA14433
Abstract: Morphological data show that the two subspecies currently assigned to Leionema elatius (Benth.) Paul G.Wilson (Rutaceae), namely L. elatius subsp. elatius and L. elatius subsp. beckleri (F.Muell.) Paul G.Wilson, are not conspecific. Leionema elatius subsp. beckleri is reinstated to the rank of species as L. beckleri (F.Muell.) I.Telford & J.J.Bruhl. The distributions of both species are mapped and their conservation status discussed. Images comparing the morphological attributes of the two species and a table comparing selected attributes of the species and the newly described L. praetermissum P.R.Alvarez & Duretto are presented. A key to species of Leionema found in New South Wales and south-eastern Queensland is provided.
Leionema westonii (Rutaceae), a rare, new species from north-eastern New South Wales, Australia
Publisher: Royal Botanical Gardens and Domain Trust
Date: 04-04-2018
DOI: 10.7751/TELOPEA11983
Abstract: Leionema westonii L.M.Copel. & I.Telford (Rutaceae), a rare, new species endemic to montane north-eastern New South Wales, is named as new. The species appears to be allied to L. gracile (C.T.White) Paul G.Wilson and a table comparing selected attributes of the two species is presented. A map showing the distributions of both species is presented. The conservation status, habitat and phenology of the new species are discussed.
Chromosome evolution in Bulbine glauca (Asphodelaceae or Xanthorrhoeaceae subfam. Asphodeloideae) indicates six species, not one
Publisher: CSIRO Publishing
Date: 2016
DOI: 10.1071/BT15242
Abstract: The genus Bulbine Wolf has ~130 species in Africa and only seven species in Australia. Base chromosome numbers in African and Australian Bulbine are x = 7 and x = 12, respectively. This raises the possibility of Australian Bulbine being of polyploidy origin or, alternatively African Bulbine may have evolved through dysploid reduction. Previous chromosome counts in Bulbine glauca (Raf.) E.M.Watson were predominantly 2n = 46, with aneuploid numbers of 2n = 45, 44, 48, 47, 40 and 41 also being encountered within and between populations. Novel chromosome counts are presented here for a wide s le of populations of B. glauca, occurring on volcanic and granite outcrops along the New South Wales and Victorian tablelands and on granite outcrops in Tasmania. Chromosome numbers for Bulbine crassa D.I.Morris and Duretto is 2n = 26. The modal chromosome count for B. glauca is confirmed as 2n = 46 with no evidence of aneuploidy. The species complex shows a variable asymmetric karyotype across its distribution, indicating karyotypic evolution involving structural rearrangements. There appear to be six distinctive groups within the complex based on karyomorphology. Evolutionary changes in both B. glauca s. lat. and B. crassa appear to have not involved recent polyploidy. Variation in chromosome morphology across the B. glauca complex is consistent with our morphological evidence of more than one species.
Grass not fungus: 'Walwhalleya nom. nov.' (Poaceae, Paniceae)
Publisher: CSIRO Publishing
Date: 2006
DOI: 10.1071/SB06004
Systematic studies in Lepidosperma (Cyperaceae: Schoeneae) with particular reference to L. laterale
Publisher: CSIRO Publishing
Date: 2006
DOI: 10.1071/SB06007
Abstract: Lepidosperma laterale exhibits much morphological variation across its geographical range. This study included L. laterale, and morphologically similar species, as well as several comparator species. Phenetic analyses based on 27 morphological and 25 vegetative anatomical characteristics were undertaken in an attempt to resolve taxonomic issues within the study group. Evidence for broadening the delimitation of L. laterale is strong as OTUs of this variable species formed a group with indistinct clusters in all analyses. The mixed, diffuse clusters obtained of OTUs of specimens identified as L. gunnii with specimens of L. laterale suggest that the species limits of the former lie within the limits of the latter. Specimens of most other study group taxa formed relatively cohesive, discrete clusters in ordination and cluster analyses. The results provide strong support for recognition of L. sp. Whian Whian S.F. (J. Hodgon 331 & D.M. Hodgon) and L. sp. Mt Coolum (P.R. Sharpe 5605A) as new species.
Phenetic analyses ofHomoranthus(Myrtaceae: Chamelaucieae) on the basis of morphology
Publisher: CSIRO Publishing
Date: 2007
DOI: 10.1071/SB07012
Multiple lines of evidence clarify limits of Allocasuarina thalassoscopica, A. defungens and A. littoralis (Allocasuarina sect. Cylindropitys, Casuarinaceae)
Publisher: CSIRO Publishing
Date: 2014
DOI: 10.1071/SB14009
Abstract: Uncertainty in identifying Allocasuarina shrubs of the North Coast botanical region of New South Wales and south-eastern Queensland prompted investigation of species limits using morphological and cytological data. PATN analysis using 36 morphometric characters, seedling morphology and cytogenetic analysis supported the existing circumscription of A. defungens and A. simulans. Trees of A. littoralis were observed throughout the study area and the distinct morphology of the diploid and polyploid forms is noted. Further work is required to establish whether these differences are consistent over the full range of the species. Shrubby plants of A. sect. Cylindropitys, other than the above species, growing along the NSW North Coast are currently known by several names, including A. defungens×A. littoralis. These plants were found to be morphologically most similar to A. emuina and A. thalassoscopica from south-eastern Queensland and to have similar phenotypes. Allocasuarina thalassoscopica is recircumscribed on morphological characters to encompass these shrubby plants in New South Wales and A. emuina and A. thalassoscopica from south-eastern Queensland. A key is provided for identification of plants of A. sect. Cylindropitys. Counts of chromosomes found that recircumscribed A. thalassoscopica is tetraploid and A. defungens is triploid at Nabiac but tetraploid at Khappinghat Nature Reserve. The results of the present study are consistent with a hypothesis of parallel evolution, which is possibly due to edaphic factors and requires further study.
Species limits in Carpha (Schoeneae, Cyperaceae) based on phenetic analyses
Publisher: CSIRO Publishing
Date: 2006
DOI: 10.1071/SB06003
Abstract: We review the taxonomic history of Carpha. Recent estimates of the number of species in Carpha have varied from 4 to 15. The generic limits of Carpha and some species limits within Carpha have been uncertain. This study tests the limits of species in Carpha sensu lato by phenetic analyses of morphological data and identifies 16 species. Three of them (Carpha cf. bracteosa C.B.Clarke, C. discolor ms and C. ulugurensis ms) are new the taxonomic ranks of C. angustissima Cherm., C. capitellata (Nees) Boeck. var. bracteosa (C.B.Clarke) Kük., C. nivicola F.Muell. and C. schoenoides Banks et Sol. ex Hook.f. are clarified C. perrieri Cherm. is synonymised with C. capitellata (Nees) Boeck. the definitions of C. schlechteri C.B.Clarke and C. glomerata (Thunb.) Nees are amended.
Specimens at the Center: An Informatics Workflow and Toolkit for Specimen-level Analysis of Public DNA Database Data
Publisher: American Society of Plant Taxonomists
Date: 09-2016
Nine new species of Australian Nicotiana (Solanaceae)
Publisher: CSIRO Publishing
Date: 07-07-2023
DOI: 10.1071/SB23001
Abstract: Nine new species in Australian Nicotiana section Suaveolentes are described, including N. clarksonii M.W.Chase & Christenh., N. erytheia M.W.Chase & Christenh., N. latifolia M.W.Chase & Christenh., N. latzii M.W.Chase, R.W.Jobson & Christenh., N. gibbosa M.W.Chase, D.D.Andrew & J.J.Bruhl, N. olens M.W.Chase & Christenh., N. praecipitis M.W.Chase & K.Durham, N. karara M.W.Chase & Christenh. and N. bungonia M.W.Chase & Taseski. Some have been known from herbarium specimens for a long time, but their distinction from other species concepts was unsuspected until DNA studies showed their ergent nature. Others are known from one or only a few new localities. All are morphologically and genetically distinct from their close relatives. Increased s ling of populations in our molecular studies has led us to the conclusion that the widespread, recently described species N. insecticida is a species complex, comprising as many as six genetically distinct taxa, one of which includes material from the type locality of N. hesperis. Here, we describe a new name, N. erytheia, for all material we previously assigned to N. hesperis that is phylogenetically distinct from that of the type locality. To make the relationships of the new species clearer, we provide a tree produced by analysis of nuclear (RADseq) DNA data.
Three new species of Gingidia (Apiaceae: Apioideae) from Australia and New Zealand segregated from G. montana
Publisher: CSIRO Publishing
Date: 2013
DOI: 10.1071/SB13007
Abstract: Three new species of Gingidia (Apiaceae: Apioideae) segregated from the G. montana (J.R.Forst. & G.Forst.) J.W.Dawson complex are named, with G. montana now regarded as a New Zealand endemic. The new Australian endemic, G. rupicola I.Telford & J.J.Bruhl, is restricted to the eastern escarpment of the New England Tableland, New South Wales. With few populations and limited numbers of plants, the conservation assessment of G. rupicola is Endangered. G. haematitica Heenan is described as a new species from North-West Nelson, South Island, New Zealand, where it is restricted to base-rich substrates in the Burnett Range. Because of its restricted distribution and the continued mining for dolomite at the site of the largest population, G. haematitica is considered to have a conservation assessment of Nationally Critical. The second New Zealand endemic, G. histoma Heenan, is known from alpine habitats in the Southern Alps, South Island. Distributions of the three new species are mapped, habitats noted, and a table compares attributes of these species and G. montana.
Global dispersal and diversification of the genus Schoenus (Cyperaceae) from the Western Australian biodiversity hotspot
Publisher: Wiley
Date: 06-2021
DOI: 10.1111/JSE.12742
Abstract: The predominantly austral genus Schoenus L. is the largest genus in tribe Schoeneae and one of the ten most species‐rich Cyperaceae genera, with over 150 accepted species found mostly in Australia, New Zealand, southeast Asia, and southern Africa. Here, we use data based on two nuclear and three plastid DNA regions to present one of the most comprehensive phylogenetic reconstructions of a genus in Cyperaceae to date, covering over 70% of described species of Schoenus . After recent taxonomic realignments in the last 4 years have both added and removed species from the genus, we show that Schoenus is now monophyletic. In addition, our results indicate that Schoenus originated in Western Australia in the Paleocene and eventually dispersed to surrounding continents, but rarely back. The ersification rate of the genus appears to have slightly decreased over time, and there has not been an increase associated with the establishment of the Cape clade endemic to the sclerophyllous fynbos vegetation type, such as has been reported in other plant lineages endemic to the Cape region. These results will serve as a template to understanding the complex patterns of genome size evolution and to untangle drivers of ersification in this genus.
Tracing the origins of hybrids through history: monstrous cultivars and Napoléon Bonaparte’s exiled paper daisies (Asteraceae; Gnaphalieae)
Publisher: Oxford University Press (OUP)
Date: 26-03-2021
DOI: 10.1093/BOTLINNEAN/BOAB020
Abstract: Golden everlasting paper daisies (Xerochrysum, Gnaphalieae, Asteraceae) were some of the earliest Australian native plants to be cultivated in Europe. Reputedly a favourite of Napoléon Bonaparte and Empress Joséphine, X. bracteatum is thought to have been introduced to the island of St Helena in the South Atlantic during Napoléon’s exile there. Colourful cultivars were developed in the 1850s, and there is a widely held view that these were produced by crossing Xerochrysum with African or Asian Helichrysum spp. Recent molecular phylogenetic analyses and subtribal classification of Gnaphalieae cast doubt on this idea. Using single-nucleotide polymorphism (SNP) data, we looked for evidence of gene flow between modern cultivars, naturalized paper daisies from St Helena and four Xerochrysum spp. recorded in Europe in the 1800s. There was strong support for gene flow between cultivars and X. macranthum. Paper daisies from St Helena were genotypically congruent with X. bracteatum and showed no indications of ancestry from other species or from the cultivars, consistent with the continuous occurrence of naturalized paper daisies introduced by Joséphine and Napoléon. We also present new evidence for the origin of colourful Xerochrysum cultivars and hybridization of congeners in Europe from Australian collections.
Phylogenetic relationships of Xerochrysum, Coronidium and Helichrysum leucopsideum reveal a new genus, Leucozoma (Asteraceae: Gnaphalieae)
Publisher: Wiley
Date: 28-07-2022
DOI: 10.1002/TAX.12771
Abstract: We gathered morphological data and genome‐wide single nucleotide polymorphisms to infer the evolutionary relationships of Xerochrysum , Coronidium , and Helichrysum leucopsideum , and to test the circumscription of the genera. SVDquartets species tree topology resolved relationships between the genera and within subsets of the Xerochrysum data. Results corroborated previous conclusions that Coronidium is non‐monophyletic as presently circumscribed and forms, in addition to the more distantly related Coronidium scorpioides group, three morphologically distinct clades. SVDquartets returned two clades in Xerochrysum , though species‐level relationships were unclear. Bayesian coalescent analysis using SNAPP produced tree topologies for the three clades of Coronidium with most species‐level relationships well resolved. The new genus Leucozoma is described for seven taxa previously included in Coronidium. A revised description of Coronidium and images of phyllary and fruit diagnostic morphological characters are provided.
Schoenus rupicola: a narrowly endemic species distinguished from S. melanostachys (Cyperaceae, Schoeneae) in eastern Australia
Publisher: CSIRO Publishing
Date: 2018
DOI: 10.1071/SB17046
Abstract: Widespread, common species are of limited value for regional biogeographic studies and of least concern for conservation and land management. In contrast, narrow endemics may be informative for such studies and are usually of high conservation priority. A new species is separated from the widespread species Schoenus melanostachys on the basis of phenetic analysis of morphological data, and integrating evidence from culm anatomy, culm and fruit ornamentation, and corroborated by ecological differentiation. Schoenus rupicola Musili & J.J.Bruhl is found on acid volcanics of south-eastern Queensland and north-eastern New South Wales, adding yet another narrow endemic to the suite of species that characterises the McPherson Range and associated igneous outcrops.
A global review of the ecological significance of symbiotic associations between birds and fungi
Publisher: Springer Science and Business Media LLC
Date: 09-2019
Reinstatement and revision of the genus Chaetospora (Cyperaceae: Schoeneae)
Publisher: Royal Botanical Gardens and Domain Trust
Date: 02-07-2020
DOI: 10.7751/TELOPEA14345
Abstract: Three species are recognised in a new circumscription of the genus Chaetospora R.Br. Chaetospora is lectotypified on C. curvifolia R.Br. A new combination, Chaetospora subbulbosa (Benth.) K.L.Wilson & R.L.Barrett is made for Schoenus subbulbosus Benth. Lectotypes are also selected for Chaetospora aurata Nees, Chaetospora curvifolia R.Br., Chaetospora turbinata R.Br., Elynanthus capitatus Nees, Schoenus subbulbosus Benth., Schoenus subg. Pseudomesomelaena Kük. and Schoenus sect. Sphaerocephali Benth. Two species are endemic to south-western Australia, while the third is endemic to south-eastern Australia. Full descriptions, illustrations and a key to species are provided. All species have anatomy indicative of C3 photosynthetic-type.
Could this be Australia's rarest Banksia? Banksia vincentia (Proteaceae), a new species known from fourteen plants from south-eastern New South Wales, Australia
Publisher: Magnolia Press
Date: 31-01-0248
DOI: 10.11646/PHYTOTAXA.163.5.3
Abstract: Possession of hooked, distinctively discolorous styles, a broadly flabellate common bract subtending each flower pair, and a lignotuber place a putative new species, Banksia sp. Jervis Bay, in the B. spinulosa complex. Phenetic analysis of in iduals from all named taxa in the B. spinulosa complex, including B. sp. Jervis Bay, based on leaf, floral, seed and bract characters support recognition of this species, which is described here as Banksia vincentia M.L.Stimpson & P.H.Weston. Known only from fourteen in iduals, B. vincentia is distinguished by its semi-prostrate habit, with basally prostrate, distally ascending branches from the lignotuber, and distinctive perianth colouring. Its geographical location and ecological niche also separate it from its most similar congeners.
Molecular phylogenetics ofPhyllanthussensu lato (Phyllanthaceae): Towards coherent monophyletic taxa
Publisher: Wiley
Date: 31-12-2020
DOI: 10.1002/TAX.12424
Netrostylis, a new genus of Australasian Cyperaceae removed from Tetraria
Publisher: Royal Botanical Gardens and Domain Trust
Date: 25-03-2021
DOI: 10.7751/TELOPEA14922
Abstract: A new genus, Netrostylis R.L.Barrett, J.J.Bruhl & K.L.Wilson is described for Australasian species previously known as Tetraria capillaris (F.Muell.) J.M.Black (Cyperacea tribe Schoeneae). The genus is restricted to southern and eastern Australia, and the North Island of New Zealand. Two new combinations are made: Netrostylis capillaris (F.Muell.) R.L.Barrett, J.J.Bruhl & K.L.Wilson and Netrostylis halmaturina (J.M.Black) R.L.Barrett, J.J.Bruhl & K.L.Wilson. Netrostylis is a member of the Lepidosperma Labill. Clade.
Molecular and morphological analyses support recognition of Prostanthera volucris (Lamiaceae), a new species from the Central Tablelands of New South Wales
Publisher: Cold Spring Harbor Laboratory
Date: 22-12-2021
DOI: 10.1101/2021.12.21.473648
Abstract: Research into the systematics of Prostanthera has recently revealed a close evolutionary relationship among P. phylicifolia s. str. , the critically endangered P. gilesii , and a population of uncertain identity from the Central Tablelands of New South Wales, Australia. Previous analyses were unable to establish whether genetic boundaries separated these taxa. This study aimed to assess the species boundaries among these three taxa using a combination of single-nucleotide polymorphisms (SNP) s led at the population-scale and multivariate analysis of morphological characters. Non-parametric and parametric statistics, neighbour-network analysis, phylogenetic analysis, and ancestry coefficient estimates all provided support for discrete genetic differences between the three taxa. Morphological phenetic analysis identified a suite of characters that distinguished each of these taxa. This corroboration of evidence supports the presence of three independently evolving lineages. Prostanthera gilesii and P. phylicifolia s. str. are distinct species independent from the third taxon which is described here as P. volucris R.P.O’Donnell. A detailed description, diagnostic line drawings and photographs are provided. We evaluate P. volucris as satisfying criteria to be considered Critically Endangered.
Revision of generic concepts in Schoeneae subtribe Tricostulariinae (Cyperaceae) with a new genus Ammothryon and new species of Tricostularia
Publisher: Royal Botanical Gardens and Domain Trust
Date: 16-04-2021
DOI: 10.7751/TELOPEA14844
Abstract: The Tricostularia Nees ex Lehm. group of genera is reviewed and formally recognised as Cyperaceae tribe Schoeneae subtribe Tricostulariinae R.L.Barrett, K.L.Wilson & J.J.Bruhl. Molecular data based on plastid trnL–F and nuclear ITS and ETS regions are combined with a novel assessment of morphological characters to support our new classification. Six genera are included: a new genus, Ammothryon R.L.Barrett, K.L.Wilson & J.J.Bruhl, and the named genera Chaetospora R.Br., Morelotia Gaudich., Tetraria P.Beauv., Tricostularia, and Xyroschoenus Larridon. Ammothryon, Chaetospora and Tricostularia are all endemic to southern Australia. Morelotia has one species each in Hawaii, French Polynesia and New Zealand, and three species in south-west Western Australia. Tetraria has a disjunct distribution in Southern Africa, Borneo, New Guinea and New Caledonia. Xyroschoenus is endemic to the Seychelles. Tetrariopsis C.B.Clarke (based on Tetrariopsis octandra (Nees) C.B.Clarke) is included under an expanded concept of Morelotia, which also includes Tetraria australiensis C.B.Clarke and Tetraria microcarpa S.T.Blake from south-west Western Australia. Tricostularia davisii R.L.Barrett & K.L.Wilson and Tricostularia sandifordiana R.L.Barrett & K.L.Wilson are described as new species from south-west Western Australia. The following new combinations are made: Ammothryon grandiflorum (Nees) R.L.Barrett, K.L.Wilson & J.J.Bruhl, Morelotia australiensis (C.B.Clarke) R.L.Barrett & K.L.Wilson, Morelotia microcarpa (S.T.Blake) R.L.Barrett & K.L.Wilson, Morelotia octandra (Nees) R.L.Barrett & J.J.Bruhl and Tricostularia drummondii (Steud.) R.L.Barrett & K.L.Wilson. Tricostularia drummondii is reinstated from synonomy, having previously been confused with T. exsul. Lectotypes are selected for Chaetospora flexuosa var. β gracilis Boeckeler, Discopodium drummondii Steud., Elynanthus grandiflorus Nees ex Lehm., L ocarya affinis Brongn., Lepidosperma exsul C.B.Clarke, Morelotia gahniiformis Gaudich. var. minor A.Rich., Tetraria australiensis C.B.Clarke, Tetraria capillacea var. intercedens Kük., Tricostularia compressa Nees ex Lehm. and Tricostularia neesii Lehm.
Enzymatic browning: The role of substrates in polyphenol oxidase mediated browning
Publisher: Elsevier BV
Date: 2023
Five new species and a new combination in Cyperaceae from the Kimberley region of Western Australia
Publisher: Department of Biodiversity, Conservation and Attractions
Date: 03-11-2015
DOI: 10.58828/NUY00732
Radiation and repeated transoceanic dispersal of Schoeneae (Cyperaceae) through the southern hemisphere
Publisher: Wiley
Date: 12-2013
DOI: 10.3732/AJB.1300105
Abstract: The broad austral distribution of Schoeneae is almost certainly a product of long-distance dispersal. Owing to the inadequacies of existing phylogenetic data and a lack of rigorous biogeographic analysis, relationships within the tribe remain poorly resolved and its pattern of radiation and dispersal uncertain. We employed an expanded s ling of taxa and markers and a rigorous analytic approach to address these limitations. We evaluated the roles of geography and ecology in stimulating the initial radiation of the group and its subsequent dispersal across the southern hemisphere. A dated tree was reconstructed using reversible-jump Markov chain Monte Carlo (MCMC) with a polytomy prior and molecular dating, applied to data from two nuclear and three cpDNA regions. Ancestral areas and habitats were inferred using dispersal-extinction-cladogenesis models. Schoeneae originated in Australia in the Paleocene. The existence of a "hard" polytomy at the base of the clade reflects the rapid ergence of six principal lineages ca. 50 Ma, within Australia. From this ancestral area, Schoeneae have traversed the austral oceans with remarkable frequency, a total of 29 distinct dispersal events being reported here. Dispersal rates between landmasses are not explicable in terms of the geographical distances separating them. Transoceanic dispersal generally involved habitat stasis. Although the role of dispersal in explaining global distribution patterns is now widely accepted, the apparent ease with which such dispersal may occur has perhaps been under-appreciated. In Schoeneae, transoceanic dispersal has been remarkably frequent, with ecological opportunity, rather than geography, being most important in dictating dispersal patterns.
The pollination of Trimenia moorei (Trimeniaceae): Floral volatiles, insect/wind pollen vectors and stigmatic self-incompatibility in a basal angiosperm
Publisher: Oxford University Press (OUP)
Date: 09-07-2003
DOI: 10.1093/AOB/MCG157
Two new, sympatric species of Wahlenbergia (Campanulaceae) from the New England Tableland escarpment, New South Wales, Australia
Publisher: CSIRO Publishing
Date: 2009
DOI: 10.1071/SB09021
Abstract: The status of two putative new species of Wahlenbergia sympatric on the New England Tableland escarpment was investigated with morphometric analyses of a database derived from vegetative, floral and fruit characters and scanning electron microscopic studies of seeds. The following new species are described: W. rupicola G.T.Plunkett & J.J.Bruhl and W. telfordii G.T.Plunkett & J.J.Bruhl. Their distributions, habitats and conservation status are noted.
New Sauropus (Euphorbiaceae: Phyllantheae) taxa for the Northern Territory and Western Australia and notes on other Sauropus occurring in these regions
Publisher: Department of Biodiversity, Conservation and Attractions
Date: 10-03-1997
DOI: 10.58828/NUY00261
Three new species segregated from Phebalium squamulosum subsp. squamulosum (Rutaceae) based on morphological and phytochemical data
Publisher: Biodiversity Heritage Library
Date: 20-08-2019
DOI: 10.5962/P.337576
Morphological and molecular data reveal three rather than one species of Sicyos (Cucurbitaceae) in Australia, New Zealand and Islands of the South West Pacific
Publisher: CSIRO Publishing
Date: 2012
DOI: 10.1071/SB11032
Abstract: Morphometric data have long suggested the existence of three species of Sicyos in Australia and New Zealand. Molecular data now corroborate this and place the three species in the context of the remaining 72 species of Sicyos, most of them in the New World. We here describe and illustrate Sicyos undara I.Telford & P.Sebastian from northern Queensland and S. mawhai I.Telford & P.Sebastian from New Zealand, and emend the circumscription of S. australis to account for the removal of these two extraneous elements. We also provide a key to the three species, map their ranges, and note their habitat and conservation status.
Three new species of Phyllanthus (Euphorbiaceae: Phyllantheae) for the Northern Territory, one new species for Western Australia, and notes on other Phyllanthus species occurring in these regions
Publisher: Department of Biodiversity, Conservation and Attractions
Date: 10-03-1997
DOI: 10.58828/NUY00260
Osmotic adjustment, stomata morphology and function show contrasting responses to water stress in mesic and hydric grasses under elevated CO<sub>2</sub> concentration
Publisher: Institute of Experimental Botany
Date: 30-01-2019
DOI: 10.32615/PS.2019.016
Morphological and molecular data show an enlarged tropical Australian radiation in Synostemon (Phyllanthaceae, Phyllantheae) previously concealed by heteromorphic species concepts
Publisher: CSIRO Publishing
Date: 2019
DOI: 10.1071/SB18029
Abstract: Sauropus elachophyllus (F.Muell. ex Benth.) Airy Shaw and S. rigidulus (F.Muell. ex Müll.Arg.) Airy Shaw are revised under the reinstated genus Synostemon F.Muell. (Phyllanthaceae) using morphological and nrITS sequence data. Sauropus decrescentifolius J.T.Hunter & J.J.Bruhl and S. elachophyllus are shown to be conspecific as Synostemon elachophyllus (F.Muell. ex Benth.) I.Telford & Pruesapan and S. elachophyllus subsp. decrescentifolius (J.T.Hunter & J.J.Bruhl) I.Telford & Pruesapan, with Synostemon elachophyllus subsp. latior (Airy Shaw) I.Telford & Pruesapan (syn. Sauropus elachophyllus var. glaber Airy Shaw p.p.) raised in rank. The ‘Top End clade’ has morphological synapomorphies of fused staminal filaments and connectives, and linear, longitudinal anthers. Four new species are named: Synostemon cowiei I.Telford & J.J.Bruhl, S. inaequisepalus I.Telford & J.J.Bruhl, S. kakadu I.Telford & J.J.Bruhl and S. nitmiluk I.Telford & J.J.Bruhl and new combinations are provided: S. crassifolius (Müll.Arg.) I.Telford & Pruesapan, S. ditassoides (Müll.Arg.) I.Telford & Pruesapan, S. dunlopii (J.T.Hunter & J.J.Bruhl) I.Telford & Pruesapan, S. filicinus (J.T.Hunter & J.J.Bruhl) I.Telford & Pruesapan, S. gracilis (J.T.Hunter & J.J.Bruhl) I.Telford & Pruesapan, S. rigidulus (F.Muell. ex Müll.Arg.) I.Telford & Pruesapan, and S. stenocladus (S.Moore) I.Telford & Pruesapan, with S. pinifolius (J.T.Hunter & J.J.Bruhl) I.Telford & Pruesapan also raised in rank.
Morphological and molecular data show Synostemon trachyspermus (Phyllanthaceae, Phyllantheae) to be a heterogeneous species assemblage
Publisher: CSIRO Publishing
Date: 2016
DOI: 10.1071/SB16008
Abstract: Synostemon trachyspermus (F.Muell.) I.Telford & Pruesapan (Phyllanthaceae, Phyllantheae) is shown, by morphological studies and phylogenetic analysis using nrITS DNA sequence data, to be a heterogeneous species assemblage of four species. Phyllanthus rhytidospermus F.Muell. ex Müll.Arg., with a new combination provided as Synostemon rhytidospermus (F.Muell. ex Müll.Arg.) I.Telford & Pruesapan, and Sauropus hubbardii Airy Shaw, with a new combination as Synostemon hubbardii (Airy Shaw) I.Telford & Pruesapan, are re-instated as species. Phyllanthus arnhemicus S.Moore is lectotypified and placed in synonomy under Synostemon lissocarpus (S.Moore) I.Telford & Pruesapan, which is the new combination provided for Phyllanthus lissocarpus S.Moore (syn. Sauropus lissocarpus (S.Moore) Airy Shaw). Synostemon umbrosus I.Telford & J.J.Bruhl, a rare endemic from the Kimberley, Western Australia, is named as new. The newly described S. hamersleyensis I.Telford & Naaykens, endemic to the Pilbara, Western Australia, and the north-eastern Queensland endemic Sauropus aphyllus J.T.Hunter & J.J.Bruhl are shown to be closely related the new combination Synostemon aphyllus (J.T.Hunter & J.J.Bruhl) I.Telford & Pruesapan is provided for the latter. Sauropus sp. A of Flora of the Kimberley Region, previously included within S. trachyspermus sens.lat., shows a more distant relationship and is named as Synostemon judithae I.Telford & J.J.Bruhl. Notes on distribution, habitat, phenology, conservation status, photomicrographs of seeds and a key to identification of the species are provided.
A morphometric analysis of the Banksia spinulosa complex (Proteaceae) and its complex taxonomic implications
Publisher: CSIRO Publishing
Date: 2016
DOI: 10.1071/SB15030
Abstract: Specimens of all known taxa and putative entities belonging to the Banksia spinulosa complex were collected from Kuranda in northern Queensland, western to central Queensland and down the eastern coast of Australia to Wilsons Promontory in southern Victoria. These specimens were used to investigate morphological variation in habit, stems, leaves, inflorescences, fruits and seeds in the complex. Phenetic analysis (unweighted pair-group method with arithmetic mean, UPGMA, clustering and semi-strong hybrid multi-dimensional scaling, SSH–MDS, ordination) was performed on the full dataset of 233 entities using 33 characters (18 quantitative, two binary and 13 multistate). To facilitate visualisation of patterns in both clustering and ordination, we also analysed subgroups based on the results of the phenogram from the full dataset. The results showed that the five known and described taxa are phenetically distinct, viz. B. collina sens. str., B. cunninghamii sens. str., B. neoanglica, B. spinulosa and B. vincentia, and provided support for a further 12 morphometrically diagnosable entities, four of which could not be diagnosed with simple combinations of character states and require further investigation. The present study has highlighted that there is much more hidden morphological ersity in the B. spinulosa complex than has previously been recognised in any of the current competing taxonomies.
A new species of
Publisher: CSIRO Publishing
Date: 06-12-2018
DOI: 10.1071/SB17055
Abstract: We investigated the limits of Lepidosperma congestum R.Br. and a putative new species of Lepidosperma Labill. from Victoria and South Australia. Phenetic analyses (flexible UPGMA agglomerative hierarchical fusion and semi-strong hybrid multidimensional scaling) were conducted on a dataset derived from morphological characters scored from herbarium material. The results of our analyses supported the recognition of a new species, which we describe here as Lepidosperma hispidulum G.T.Plunkett, J.J.Bruhl & K.L.Wilson. Our results clarified the differences among L. congestum, L. laeve R.Br. and L. hispidulum, the first two of which have often been misidentified. We also discuss the distribution, habitat and conservation status of L. hispidulum.
Morphological evaluation of the 'Drosera peltata' complex (Droseraceae)
Publisher: CSIRO Publishing
Date: 2012
DOI: 10.1071/SB11030
Abstract: A phenetic study of morphological characters of the Drosera peltata complex (Droseraceae) supports the recognition of the following taxa: D. peltata from wetlands of south-eastern Australia D. auriculata from south-eastern Australia and New Zealand the morphologically variable D. hookeri from south-eastern Australia and northern New Zealand the widespread D. lunata from southern and South-East Asia, as well as northern and north-eastern Australia and the new species D. yilgarnensis R.P.Gibson & B.J.Conn is here described, from around granite outcrops of south-western Australia. D. bicolor from south-western Australia is recognised as a distinct species outside of the D. peltata complex. D. insolita, considered until recently as a distinct species, is reduced to synonymy of D. lunata. Phenotypic plasticity, vegetative similarity and fleetingly produced diagnostic floral and seed characters within the complex pose significant challenges in understanding the taxonomy of these taxa.
Reassessment of the taxonomic status of Cyperaceae on Rapa Iti, Austral Islands, French Polynesia, with a new combination, Morelotia involuta
Publisher: Royal Botanical Gardens and Domain Trust
Date: 07-04-2021
DOI: 10.7751/TELOPEA14956
Abstract: We reassess the current taxonomic status and distribution of Cyperaceae on Rapa Iti, Austral Islands, French Polynesia. This includes the poorly known Machaerina involuta H.St John (Cyperaceae, tribe Schoeneae), 86 years after it was first collected. Detailed morphological examination revealed that M. involuta belongs in Morelotia Gaudich. and the new combination, Morelotia involuta (H.St John) J.J.Bruhl & R.L.Barrett, is made here. Nineteen species of Cyperaceae are reported for Rapa Iti (10% of the vascular flora). The high ersity of Cyperaceae invites further discussion of the biogeographic connections and environmental conditions of Rapa Iti and a summary is provided. Notes on additional Cyperaceae named from Rapa Iti (Carex rapaensis (H.St John) K.L.Wilson, Carex stokesii F.Br., C. stokesii var. aristata F.Br., Cyperus rapensis F.Br., Eleocharis caribaea var. stokesii F.Br., Gahnia stokesii F.Br. and Rhynchospora stokesii F.Br.) are presented and a presently unidentified Carex is noted.
Lepidosperma prospectum (Cyperaceae), a new species from Sydney coastal heath and notes on usage of sword sedges
Publisher: Royal Botanical Gardens and Domain Trust
Date: 06-05-2022
DOI: 10.7751/TELOPEA14879
Abstract: Lepidosperma prospectum G.T.Plunkett & R.L.Barrett (Cyperaceae tribe Schoeneae) is here described as a new species in the Sydney region of New South Wales. It is highly restricted in distribution, occurring at Manly (Sydney Harbour National Park), Kamay Botany Bay National Park and Royal National Park in dense coastal shrublands behind coastal cliffs. These locations are within the traditional lands of the Gamaragal, Gweagal and Dharawal people respectively. Joseph Banks and Daniel Solander were the first Europeans to explore the flora of New South Wales in 1770 around Botany Bay but they did not collect this species. Lepidosperma prospectum is superficially similar to L. sieberi Kunth, which occurs in adjacent habitats, but molecular data have shown that it is more closely allied to Western Australian species. A brief review of recorded indigenous and European knowledge and utilisation of the genus Lepidosperma Labill. is presented to highlight the varied uses of the genus.
Dodonaea crucifolia (Sapindaceae, Dodonaeoideae), a new species from north-eastern New South Wales, Australia
Publisher: Royal Botanical Gardens and Domain Trust
Date: 04-09-2020
DOI: 10.7751/TELOPEA14438
Abstract: Dodonaea crucifolia I.Telford & J.J.Bruhl (Sapindaceae, Dodonaeoideae), endemic to north-eastern New South Wales, Australia, and previously confused with D. hirsuta (Maiden & Betche) Maiden & Betche, is described as new. Dodonaea hirsuta is recircumscribed with the D. crucifolia components removed and with male flowers described for the first time. The distribution, habitat and conservation status of both species are discussed and a table is provided comparing selected morphological attributes. Images of the new species and D. hirsuta are provided. The identification keys in Flora of Australia and NSW FloraOnline are modified to include the new species.
Subgeneric delimitation of the plant genus Phyllanthus (Phyllanthaceae)
Publisher: Naturalis Biodiversity Center
Date: 30-11-2018
First instalment in resolution of the 'Banksia spinulosa' complex (Proteaceae): 'B. neoanglica', a new species supported by phenetic analysis, ecology and geography
Publisher: Pensoft Publishers
Date: 03-08-2012
Phylogeny of Carpha and related genera (Schoeneae, Cyperaceae) inferred from morphological and molecular data
Publisher: CSIRO Publishing
Date: 2007
DOI: 10.1071/SB06023
Abstract: The limits, definitions and relationships of Carpha have been controversial and unclear. This study using cladistic analyses of morphological and combined morphological and molecular data indicates that: (1) Carpha sensu latu is paraphyletic and its species form two clades, consistent with the definitions of Carpha sensu stricto and Asterochaete respectively (i.e. the data support the ision of Carpha sensu latu into two genera: Carpha sensu stricto and Asterochaete) (2) the morphological data show a high degree of homoplasy within Schoeneae (3) Schoeneae is not a monophyletic tribe (4) Schoenus and Tricostularia are polyphyletic (5) it is better to place Schoenoides back in Oreobolus (6) separation of Capeobolus brevicaulis from Costularia or Tetraria is supported and (7) both genera Costularia and Tetraria should be maintained. The study resolves some phylogenetic relationships between Carpha and its relatives. Many aspects of these relationships are in agreement with previous studies, but some of these relationships have no support. The study also resolves the phylogenetic relationships of species of Carpha, although with lack of support for some clades, highlighting the need for other sources of data.
Molecular dating of Winteraceae reveals a complex biogeographical history involving both ancient Gondwanan vicariance and long-distance dispersal
Publisher: Wiley
Date: 15-02-2014
DOI: 10.1111/JBI.12265
Erratum: Bouman, R.W., Keβler, P.J.A., Telford, I.R.H., Bruhl, J.J., Strijk, J.S., Saunders, R.M.K., Esser, H.-J., Falcón-Hidalgo, B. & van Welzen, P.C. (2022) A revised phylogenetic classific
Publisher: Magnolia Press
Date: 16-05-2023
DOI: 10.11646/PHYTOTAXA.597.3.5
Abstract: N/A
'Phebalium verrucosum' (Rutaceae), new status for a taxon excluded from 'P. squamulosum' on morphological and phytochemical evidence
Publisher: Royal Botanical Gardens and Domain Trust
Date: 18-08-2014
Abstract: Phebalium squamulosum Vent. subsp. verrucosum Paul G.Wilson (Rutaceae) is excluded from P. squamulosum and raised to the rank of species as P. verrucosum (Paul G.Wilson) I.Telford & J.J.Bruhl based on morphological and essential oil data. The distribution of the species is mapped and its conservation status is revised.
Uptake and distribution of ions reveal contrasting tolerance mechanisms for soil and water salinity in okra (Abelmoschus esculentus) and tomato (Solanum esculentum)
Publisher: Elsevier BV
Date: 12-2014
Khaosokia caricoides, a new genus and species of Cyperaceae from Thailand
Publisher: Oxford University Press (OUP)
Date: 11-2005
Molecular data consistently recover a 'Queensland clade' of Synostemon Phyllanthaceae, Phyllantheae) with distinctive floral morphology
Publisher: CSIRO Publishing
Date: 2014
DOI: 10.1071/SB14034
Abstract: Molecular analysis of the newly reinstated genus Synostemon F.Muell. (Phyllanthaceae, Phyllantheae), using ITS sequence data from the now densely s led genus, confirmed that the previously recognised ‘Queensland clade’ consists of Synostemon albiflorus (F.Muell. ex Müll.Arg.) Airy Shaw, S. sphenophyllus Airy Shaw, Sauropus podenzanae (S.Moore) Airy Shaw and the undescribed Synostemon spinescens, sp. nov. ined., the latter being validated here as S. spinosus I.Telford & J.J.Bruhl. Morphological synapomorphies for the clade are as follows: linear, apiculate anthers that are connivent but only basally connate, and thickened, clavate, recurved stigmas. A new combination is provided under Synostemon for Sauropus podenzanae as Synostemon podenzanae (S.Moore) I.Telford & Pruesapan and Sauropus convallarioides J.T.Hunter & J.J.Bruhl is formally placed in synonymy under Synostemon sphenophyllus. Descriptions, distributional data and notes on ecology and conservation status are provided for these species. Phyllanthus albiflorus F.Muell. ex Müll.Arg., the basionym of Synostemon albiflorus, is lectotypified.
Schoenus (Cyperaceae) is not monophyletic based on ITS nrDNA sequence data
Publisher: CSIRO Publishing
Date: 2016
DOI: 10.1071/SB15046
Abstract: We used nuclear rDNA-sequence data from the internal transcribed spacer (ITS) region to test the monophyly of Schoenus by using maximum parsimony and Bayesian inference. Schoenus is not monophyletic, with strong bootstrap support for most branches and congruence across analyses. nrITS does not resolve terminal taxa fully and, therefore, needs to be used in combination with other lines of evidence to address questions of species limits.
Four new rare species of Sauropus Blume (Euphorbiaceae: Phyllantheae) from north Queensland
Publisher: Biodiversity Heritage Library
Date: 1997
DOI: 10.5962/P.365847
Phylogeny and proposed circumscription of Breynia, Sauropus and Synostemon (Phyllanthaceae), based on chloroplast and nuclear DNA sequences
Publisher: CSIRO Publishing
Date: 2012
DOI: 10.1071/SB11005
Abstract: Previous estimates of phylogeny in the Phyllanthaceae, Phyllantheae, have been h ered by unders ling of species from morphologically distinctive groups and using too few gene regions. To increase the phylogenetic resolution, sequences of two nuclear (ITS1–5.8S–ITS2) and Phytochrome C (PHYC)) and two non-coding chloroplast (accD–psaI, trnS–trnG) DNA markers were analysed using maximum parsimony and Bayesian inference with expanded s ling in Breynia, Glochidion, Sauropus and Synostemon. Our results supported reinstatement of Synostemon, previously included in Sauropus s.str., to generic rank, and provided evidence towards its future infrageneric classification. The results also indicated expansion of Breynia to include Sauropus s.str. this combined monophyletic group consists of two strongly supported clades. Finally, we showed monophyly for Glochidion, which is sister to Phyllanthus subg. Phyllanthodendron, both still remaining unders led. Morphological features characteristic of Breynia, Sauropus and Synostemon are discussed, as well as the desirability of iding Phyllanthus into smaller genera.
A revised phylogenetic classification of tribe Phyllantheae (Phyllanthaceae)
Publisher: Magnolia Press
Date: 18-03-2022
DOI: 10.11646/PHYTOTAXA.540.1.1
Abstract: The majority of tribe Phyllantheae (Phyllanthaceae) is currently placed in the paraphyletic genus Phyllanthus and discussions have persisted on how to resolve this issue. Here, we split Phyllanthus into ten monophyletic genera, which are all reinstatements of former genera, but with changes made to the circumscription and constituent species of each group. The genera Breynia, Glochidion and Synostemon were recently found to be nested within Phyllanthus and discussions ensued whether or not to subsume everything into Phyllanthus s.l. Instead of combining all these genera, we here implement the solution of splitting Phyllanthus into strictly monophyletic genera to ensure that the classification is consistent with the latest phylogenetic results. The new classification is based on a phylogenetic framework combined with differences in habit, branching type, floral, fruit and pollen morphology. With this new ision of the genus Phyllanthus, tribe Phyllantheae will consist of the following 18 genera: Breynia, Cathetus, Cicca, Dendrophyllanthus, Emblica, Flueggea, Glochidion, Heterosavia, Kirganelia, Lingelsheimia, Lysiandra, Margaritaria, Moeroris, Nellica, Nymphanthus, Phyllanthus, Plagiocladus and Synostemon. As a result of the reinstated genera, five new names for illegitimate combinations or previous overlooked nomenclatural anomalies and 645 new combinations are proposed. Several keys are provided to distinguish the reinstated genera. Full species lists are given for the reinstated genera treated here except for Breynia, Synostemon and Glochidion.
Note: Significant range extensions for 10 species of vascular plants in northern New South Wales
Publisher: Biodiversity Heritage Library
Date: 1997
DOI: 10.5962/P.365849
Taxonomy and ecology of Sphagnum-associated Desmids from the New England Tablelands, New South Wales, Australia
Publisher: Royal Botanical Gardens and Domain Trust
Date: 23-12-2022
DOI: 10.7751/TELOPEA16305
Abstract: Desmids associated with Sphagnum L. from terrestrial and aquatic habitats were investigated in the New England Tableland Bioregion. Descriptions and figures for 80 taxa are presented herein, nine of which are newly recorded for Australia, and a further seven are newly recorded for New South Wales. Two novel species of desmid, Micrasterias bicoronata A.Kenins and Cosmarium phymatodeum A.Kenins, are described. The floristic composition of desmids at Basket Sw and Ebor Common, were compared to assess their conservation value based on an existing and modified scheme better suited to desmids from Australia. Basket Sw received a relatively high score based on greater species richness and numerous endemics present. In contrast, Ebor Common scored lower due to less ersity and few regionally endemic species. This study also highlights that the desmid community found amongst Sphagnum in Australia is highly erse (βSOR = 0.82) and can differ markedly among the four assessed sites due to spatial turnover (βRATIO = 0.15). While there are species in common with the much more extensively studied Sphagnum habitats in central and western Europe, Australia has its own distinctive desmid floral elements.
Morphological, phytochemical and molecular analyses define species limits in
Publisher: CSIRO Publishing
Date: 25-02-2019
DOI: 10.1071/SB18037
Abstract: Abstract. Eucalyptus magnificata L.A.S.Johnson & K.D.Hill is an endangered species endemic to the New England Tablelands Bioregion of eastern Australia, with taxonomic conflict regarding its recognition. Analyses of morphology, phytochemistry and genomic DNA were used to test species limits of E. magnificata. Morphometric and phytochemical phenetic analyses found distinct differences among E. magnificata, E. baueriana and a putative entity recognised during field collection, i.e. E. sp. Dalveen. Another putative entity, E. sp. Oxley, was morphologically and phytochemically intermediate between E. magnificata and E. conica. Phenetic analysis of single-nucleotide polymorphism (SNP) data supported the results from morphological and phytochemical analyses. The original circumscription of E. magnificata, as distinct from E. baueriana, was strongly corroborated. Eucalyptus magnificata was found to be restricted in distribution to the Macleay Gorges area south-east of Armidale. Multiple lines of evidence provided strong support for the recognition of E. sp. Dalveen as a separately evolving entity at a species level, here described as Eucalyptus dalveenica T.L.Collins, R.L.Andrew & J.J.Bruhl. A full description of the new species, a table distinguishing E. dalveenica from closely related taxa, and an identification key are provided. Distribution, habitat and conservation status are discussed.
Phylogenetic relationships of 'Coronidium', 'Xerochrysum' and several neglected Australian species of Helichrysum (Asteraceae: Gnaphalieae)
Publisher: Wiley
Date: 03-2015
DOI: 10.12705/641.5
Prostanthera (Lamiaceae) as a ‘Cradle of Incense’: Chemophenetics of Rare Essential Oils from Both New and Forgotten Australian ‘Mint Bush’ Species
Publisher: MDPI AG
Date: 13-11-2020
Abstract: The highly aromatic Australian mint bushes from the genus Prostanthera Labill. produce a high yield of essential oil on hydrodistillation. Together with its rich history, horticultural potential, iconic flowers, and aromatic leaves, it achieves high ornamental and culinary value. Species in the genus express highly erse and chemically unique essential oils that demonstrate intra- and inter-specific patterns that have inspired taxonomic reinterpretation for over a hundred years. Previous studies have conveyed that phenoplastic expression of volatiles creates chemotypes within taxa, adding complexity to chemophenetic exploration. The current study chemically characterised essential oils from 64 highly aromatic specimens, representative of 25 taxa, giving yields as high as % g/g. The chemical profiles of essential oils are erse, but generally include 1,8-cineole and signatory compounds such as sesquiterpene oxides, caryophyllene oxide, kessane and cis-dihydroagarofuran sesquiterpene alcohols, globulol, epiglobulol, maaliol, prostantherol, spathulenol and ledol and monoterpene derivatives of common scaffolds, borneol, bornyl acetate, bornanone, linalool and linalyl acetate. As in previous studies, analysis of chemical data confirms that the chemistry strongly agrees with taxonomic classifications. Importantly, as in classical taxonomy, the current chemical study complemented morphological analysis but conveys chemovariation, obscuring the taxonomic agreement. Nevertheless, variation within taxa may be due to environmental factors, meaning that cultivation of species in gardens will create different chemical profiles as compared to those published here.
Sedges in the mist: A new species of 'Lepidosperma' (Cyperaceae, Schoeneae) from the mountains of Tasmania
Publisher: Pensoft Publishers
Date: 07-11-2013
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