Australian Systematic Botany最新文献

Taxonomic revision of Australian Erythrophleum (Fabaceae: Caesalpinioideae) including description of two new species 澳大利亚红血病的分类修订(蚕豆科:蚕豆科)包括两新种描述

3区生物学

Australian Systematic Botany Pub Date : 2023-09-27 DOI: 10.1071/sb23007

Russell L. Barrett, Matthew D. Barrett

{"title":"Taxonomic revision of Australian Erythrophleum (Fabaceae: Caesalpinioideae) including description of two new species","authors":"Russell L. Barrett, Matthew D. Barrett","doi":"10.1071/sb23007","DOIUrl":"https://doi.org/10.1071/sb23007","url":null,"abstract":"The genus Erythrophleum Afzel ex R.Br. is revised for Australia and three species are recognised, all previously included in E. chlorostachys (F.Muell.) Baill. Erythrophleum arenarium R.L.Barrett & M.D.Barrett is described as a new species to accommodate populations from desert sands of the Great Sandy Desert and Dampier Botanical Districts in north-western Australia, parapatric to the remaining species. Erythrophleum pubescens R.L.Barrett & M.D.Barrett is described as a new species spanning tropical Australia, and is sympatric with E. chlorostachys sensu stricto in the Northern Territory and adjacent areas of Western Australia and Queensland. Morphological examination has shown these three taxa to be consistently distinct across their respective ranges. Analyses of the nuclear ribosomal ITS1 region recovered three well-supported clades corresponding to the three morphologically defined species, and ITS1 has utility as a marker to separate sterile specimens. Erythrophleum pubescens is widespread in the Australian Monsoon Tropics, from the coast of Western Australia, near Derby, to Cape York Peninsula in northern Queensland. Erythrophleum chlorostachys is also widespread, from the eastern Kimberley Region, in Western Australia, to the Gulf of Carpentaria, in northern Queensland. A lectotype is chosen for Laboucheria chlorostachya F.Muell. Full descriptions, illustrations of key features and identification keys are provided for the three Australian species. A summary of the significant utilisation of Erythrophleum species is presented.","PeriodicalId":55416,"journal":{"name":"Australian Systematic Botany","volume":"181 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135536725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Eucalyptus cryptica (Myrtaceae): a critically endangered new species 隐桉：一个极度濒危的新种

IF 1.6 3区生物学

Australian Systematic Botany Pub Date : 2023-09-05 DOI: 10.1071/SB22031

Trevor C. Wilson, S. Rutherford, J. Yap, Steven M. Douglas, Enhua Lee, Maurizio Rossetto

引用次数: 0

Plastid phylogenomics of the Eriostemon group (Rutaceae; Zanthoxyloideae): support for major clades and investigation of a backbone polytomy Eriostemon群的质体系统发育学（芸香科；番荔枝科）：对主要分支的支持和对主干多体的研究

IF 1.6 3区生物学

Australian Systematic Botany Pub Date : 2023-08-22 DOI: 10.1071/SB23011

Harvey K. Orel, Todd G. B. McLay, Will C. Neal, P. Forster, M. Bayly

{"title":"Plastid phylogenomics of the Eriostemon group (Rutaceae; Zanthoxyloideae): support for major clades and investigation of a backbone polytomy","authors":"Harvey K. Orel, Todd G. B. McLay, Will C. Neal, P. Forster, M. Bayly","doi":"10.1071/SB23011","DOIUrl":"https://doi.org/10.1071/SB23011","url":null,"abstract":"ABSTRACT Most of Australia’s sclerophyllous Rutaceae belong to a clade informally known as the ‘Eriostemon group’ (including 16 genera, ~209 species). We investigated generic relationships in this group using analyses of complete plastome sequence data for 60 species and analyses of a supermatrix including sequences of four plastome spacer regions for 22 additional species. Maximum likelihood, Bayesian inference, and shortcut coalescent phylogenetic analyses produced congruent phylogenies that were highly supported, except for a series of short unsupported branches in the backbone of the Eriostemon group. We found high support for four major clades branching from this polytomy and discuss evolutionary inferences of generic relationships in each lineage. In an effort to resolve the polytomy, we analysed gene tree topologies in tree space, phylogenetic informativeness with likelihood mapping, and conducted topology tests to assess support for all possible topological resolutions of the polytomy. These approaches did not clarify the polytomy, which may be caused by insufficient data, features of plastome evolution, or rapid radiation. Results from analyses of the combined supermatrix dataset suggest that Philotheca section Philotheca is paraphyletic with regards to Drummondita and Geleznowia. In all phylogenies, Philotheca sections Corynonema and Cyanochlamys were not placed with other members of Philotheca.","PeriodicalId":55416,"journal":{"name":"Australian Systematic Botany","volume":"36 1","pages":"355 - 385"},"PeriodicalIF":1.6,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49041429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Charophytes of Australia’s Northern Territory – II. Tribe Nitelleae 澳大利亚北领地的苔藓植物——Ⅱ。Nitelleae部落

IF 1.6 3区生物学

Australian Systematic Botany Pub Date : 2023-08-18 DOI: 10.1071/SB22029

M. Casanova, Kenneth G. Karol

引用次数: 0

Leaf fossils show a 40-million-year history for the Australian tropical rainforest genus Megahertzia (Proteaceae) 叶子化石显示了澳大利亚热带雨林中巨藻属(变形科)4000万年的历史。

IF 1.6 3区生物学

Australian Systematic Botany Pub Date : 2023-08-18 DOI: 10.1071/SB23005

R. Carpenter, A. Rozefelds

{"title":"Leaf fossils show a 40-million-year history for the Australian tropical rainforest genus Megahertzia (Proteaceae)","authors":"R. Carpenter, A. Rozefelds","doi":"10.1071/SB23005","DOIUrl":"https://doi.org/10.1071/SB23005","url":null,"abstract":"ABSTRACT Well-preserved leaf fossils from the Middle Eocene Anglesea site in Victoria are assigned to a new species of Megahertzia (M. paleoamplexicaulis R.J.Carp. & Rozefelds), a genus of Proteaceae now represented by a single species, M. amplexicaulis A.S.George & B.Hyland, in the Wet Tropics rainforests of Queensland. Megahertzia-like cuticular remains also occur in the Eocene Mount Hotham assemblage of Victoria, and pollen closely conforming to Megahertzia (i.e. Proteacidites latrobensis W.K.Harris) occurs widely in Cenozoic sediments of Australia and in New Zealand. All these records add to other fossil evidence that many species of Australian rainforest Proteaceae are the last vestiges of formerly much more widespread lineages. The fossil leaves are near-identical in architecture and cuticular features to lobed leaves of M. amplexicaulis, including that they have small teeth, stomata in well-defined areoles, and fine cuticular striations. Moreover, where preserved, the leaf fossils show amplexicaul bases, a unique (apomorphic) trait of the extant species. The apparent absence at Anglesea of simple (unlobed) leaves in Megahertzia and two other taxa of fossil Proteaceae is discussed; this leaf type could have evolved convergently in response to forest canopy heat increase as Australia drifted towards the Equator.","PeriodicalId":55416,"journal":{"name":"Australian Systematic Botany","volume":"36 1","pages":"312 - 321"},"PeriodicalIF":1.6,"publicationDate":"2023-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41355671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Using RADseq to resolve species boundaries in a morphologically complex group of yellow-flowered shrubs (Geleznowia, Rutaceae) 利用RADseq解析形态复杂的黄花灌木类群(黄花灌木科)的种界

IF 1.6 3区生物学

Australian Systematic Botany Pub Date : 2023-08-03 DOI: 10.1071/SB23010

B. Anderson, R. M. Binks, M. Byrne, A. Crawford, K. Shepherd

{"title":"Using RADseq to resolve species boundaries in a morphologically complex group of yellow-flowered shrubs (Geleznowia, Rutaceae)","authors":"B. Anderson, R. M. Binks, M. Byrne, A. Crawford, K. Shepherd","doi":"10.1071/SB23010","DOIUrl":"https://doi.org/10.1071/SB23010","url":null,"abstract":"ABSTRACT The morphologically complex and charismatic genus Geleznowia (Rutaceae) is endemic to south-western Australia and faces existing and potential conservation issues associated with land clearing, climate change and commercial harvesting. Two species are currently recognised in the genus, but horticulturally recognised forms and phrase-named taxa reflect additional suspected species diversity. The genus exhibits complicated and subtle patterns of morphological variation that have historically inhibited delimitation of taxonomic entities and, as a result, precluded effective conservation assessments. Here we used ddRAD data from 25 populations across the range of Geleznowia to elucidate genomic diversity in the group in conjunction with morphological re-assessment so as to delimit species and revise the taxonomy. Our analyses consistently identified seven entities that maintain genomic distinctiveness even in sympatry with other entities, supporting the inference of reproductive barriers and lineage divergence. Morphological assessment of more than 300 specimens corroborated these seven taxa. Consequently, we recognise seven species of Geleznowia in Western Australia, retaining G. amabilis K.A.Sheph. & A.D.Crawford, recircumscribing G. verrucosa Turcz., reinstating G. calycina (J.Drumm. ex Harv.) Benth., and naming four new species as G. eximia K.A.Sheph. & A.D.Crawford, G. narcissoides K.A.Sheph. & A.D.Crawford, G. occulta K.A.Sheph. & A.D.Crawford, and G. uberiflora K.A.Sheph. & A.D.Crawford.","PeriodicalId":55416,"journal":{"name":"Australian Systematic Botany","volume":"36 1","pages":"277 - 311"},"PeriodicalIF":1.6,"publicationDate":"2023-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46140203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Pittosporum (Pittosporaceae) in Malesia and Papuasia 马列西亚和巴布亚的海桐属

IF 1.6 3区生物学

Australian Systematic Botany Pub Date : 2023-07-27 DOI: 10.1071/SB22007

L. Cayzer, T. Utteridge, G. Chandler

引用次数: 0

Nine new species of Australian Nicotiana (Solanaceae) 澳大利亚烟草属九新种（茄科）

IF 1.6 3区生物学

Australian Systematic Botany Pub Date : 2023-07-07 DOI: 10.1071/SB23001

Mark W. Chase, M. Christenhusz, L. A. Cauz-Santos, Felipe Nollet, J. Bruhl, Damien D. Andrew, Ruth Palsson, R. W. Jobson, Guy M. Taseski, R. Samuel

{"title":"Nine new species of Australian Nicotiana (Solanaceae)","authors":"Mark W. Chase, M. Christenhusz, L. A. Cauz-Santos, Felipe Nollet, J. Bruhl, Damien D. Andrew, Ruth Palsson, R. W. Jobson, Guy M. Taseski, R. Samuel","doi":"10.1071/SB23001","DOIUrl":"https://doi.org/10.1071/SB23001","url":null,"abstract":"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 divergent nature. Others are known from one or only a few new localities. All are morphologically and genetically distinct from their close relatives. Increased sampling 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.","PeriodicalId":55416,"journal":{"name":"Australian Systematic Botany","volume":"36 1","pages":"167 - 205"},"PeriodicalIF":1.6,"publicationDate":"2023-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48742390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Charophytes of Australia’s Northern Territory – I. Tribe Chareae 澳大利亚北部地区的Charophytes - I. Tribe Chareae

IF 1.6 3区生物学

Australian Systematic Botany Pub Date : 2023-03-30 DOI: 10.1071/SB22023

M. Casanova, Kenneth G. Karol

{"title":"Charophytes of Australia’s Northern Territory – I. Tribe Chareae","authors":"M. Casanova, Kenneth G. Karol","doi":"10.1071/SB22023","DOIUrl":"https://doi.org/10.1071/SB22023","url":null,"abstract":"ABSTRACT This study of Northern Territory charophytes documents 22 species in 3 of the genera in tribe Chareae, family Characeae, including 15 previously described species (Chara benthamii, C. erythrogyna, C. globularis, C. karolii, C. lucida, C. porteri, C. protocharoides, C. setosa, C. submollusca, C. wightii, C. zeylanica, Lamprothamnium capitatum, L. compactum, L. stipitatum, Lychnothamnus barbatus) of which 2 are new for the Australian flora (C. erythrogyna and C. wightii), as well as 5 varieties raised to species rank (C. aridicola, C. arnhemensis, C. bancroftii, C. behriana, C. duriuscula), and 2 newly described species (C. lamprothamniformis, C. schultae). Three previously reported species in the tribe (C. braunii, C. corallina, C. fibrosa) are not recorded from the Northern Territory in this study, as previous records were based on erroneous identifications or localities. Although Northern Territory specimens of Lychnothamnus barbatus have not been seen, it has been included in this treatment, because it occurs in south-eastern Queensland, the Gulf of Carpentaria, Papua New Guinea and Timor-Leste. A key, illustrations and descriptions of all the species are provided.","PeriodicalId":55416,"journal":{"name":"Australian Systematic Botany","volume":"36 1","pages":"38 - 79"},"PeriodicalIF":1.6,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42761587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Areas of endemism and environmental heterogeneity: a case study in Mexican legumes 地方病区域和环境异质性：以墨西哥豆科植物为例

IF 1.6 3区生物学

Australian Systematic Botany Pub Date : 2023-02-22 DOI: 10.1071/SB21037

Maribel Arenas-Navarro, T. Escalante, César Miguel-Talonia, A. Silva-Galicia, O. Téllez-Valdés

{"title":"Areas of endemism and environmental heterogeneity: a case study in Mexican legumes","authors":"Maribel Arenas-Navarro, T. Escalante, César Miguel-Talonia, A. Silva-Galicia, O. Téllez-Valdés","doi":"10.1071/SB21037","DOIUrl":"https://doi.org/10.1071/SB21037","url":null,"abstract":"Abstract. Fabaceae is a monophyletic family comprising more than 22 000 species worldwide. In Mexico, it is the second-most species rich family, inhabiting multiple ecosystems with a high diversity of life forms. Our aims were to (1) identify areas of endemism (AEs) by using endemicity analysis at different cell sizes (1°, 0.5° and 0.25°) for 488 Mexican legumes, (2) describe the climatic and topographic heterogeneity of AE, (3) determine whether there is a positive relationship between AEs and climatic and topographic heterogeneity and (4) examine the conservation status of legumes that defined the AEs. We found six general AEs, supported by 63 species, with endemicity index values ranging from 2.05 to 6.86. These general areas had zones where biogeographical provinces intersected and exhibited a higher environmental heterogeneity. Areas detected at 1° showed a positive relationship between endemicity index and environmental heterogeneity. Legume species currently lack legal protection in Mexico, 69% of the endemic species do not have an evaluation category according to the International Union for Conservation of Nature, and eight species are in some risk category. Future conservation efforts should focus on protecting endemism areas from accomplishing representative natural protected areas.","PeriodicalId":55416,"journal":{"name":"Australian Systematic Botany","volume":"36 1","pages":"21 - 37"},"PeriodicalIF":1.6,"publicationDate":"2023-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43837506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0