Systematic Botany最新文献_第5页

Ephedra kardangensis, a New Synonym of Ephedra gerardiana (Ephedraceae) 卡当麻黄，香叶麻黄属（麻黄科）的一个新异名

IF 1 3区生物学

Systematic Botany Pub Date : 2022-12-12 DOI: 10.1600/036364422X16674053033813

Z. A. Rather, A. A. Khuroo, Khalid Hussain, M. Dwivedi, Abdul Rashid Dar, Tanvir Ul Hassan Dar

引用次数: 0

Ruellia whitneyana, a New Species of Acanthaceae from Bolivia 玻利维亚无患子科的一个新种——白叶无患子

IF 1 3区生物学

Systematic Botany Pub Date : 2022-12-12 DOI: 10.1600/036364422X16674054154151

Erin A. Manzitto‐Tripp, M. Luján, Dina Clark

引用次数: 0

Clarification of the Type of Pariana maynensis (Poaceae, Bambusoideae) Reveals a New Species Housed in Herbarium for 118 Years 在植物标本馆保存了118年的新种——竹科(竹总科)的分类澄清

IF 1 3区生物学

Systematic Botany Pub Date : 2022-12-12 DOI: 10.1600/036364422X16674054154160

F. Ferreira, V. Hollowell, R. P. de Oliveira, P. Viana, Cassiano A. Dorneles Welker

引用次数: 0

Phylogenetic Placement and Taxonomic Revision of the Genus Monochilus (Lamiaceae), a Rare Brazilian Endemic 巴西罕见特有种单紫苣苔属的系统发育定位与分类修正

IF 1 3区生物学

Systematic Botany Pub Date : 2022-12-12 DOI: 10.1600/036364422X16674054154188

G. Antar, Mallory Hays, R. Harley, B. Drew

{"title":"Phylogenetic Placement and Taxonomic Revision of the Genus Monochilus (Lamiaceae), a Rare Brazilian Endemic","authors":"G. Antar, Mallory Hays, R. Harley, B. Drew","doi":"10.1600/036364422X16674054154188","DOIUrl":"https://doi.org/10.1600/036364422X16674054154188","url":null,"abstract":"Abstract Monochilus (Lamiaceae) is an enigmatic genus endemic to Brazil with two rarely collected species currently recognized. Based on morphological features Monochilus is hypothesized to be closely related to Amasonia within subfamily Ajugoideae. However, Monochilus is one of the few genera within Lamiaceae never to be represented in a published molecular phylogenetic study, and thus has an uncertain placement with the subfamily. During recent herbarium exploration in association with the Flora of Brasil 2020 project, new specimens of Monochilus gloxinifolius and M. obovatus were uncovered. Based on this material, a new phylogeny of Ajugoideae was constructed based on nuclear ribosomal ITS and chloroplast matK and trnL-trnF markers. Monochilus, as previously hypothesized, is closely related to Amasonia and placed within Ajugoideae. We discuss the phylogenetic placement of the genus and provide a taxonomic revision with description, distribution maps, an identification key, preliminary conservation assessments, photographic plates, and comments on both the taxonomy and ecology of these two species. Additionally, we provide a lectotypification for M. gloxinifolius.","PeriodicalId":54438,"journal":{"name":"Systematic Botany","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43006229","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

A New Endemic Species of Loasa ser. Macrospermae (Loasaceae) from Northern Chile 标题泥鳅特有一新种。产于智利北部的大精子属植物

IF 1 3区生物学

Systematic Botany Pub Date : 2022-12-12 DOI: 10.1600/036364422X16674054154179

Ludovica Santilli, Nicolás Lavandero, C. de Schrevel, P. Dandois, Rafael Acuña‐Castillo

引用次数: 0

Phylogenetic Position of Centroglossa and Dunstervillea (Ornithocephalus Clade: Oncidiinae: Orchidaceae) Based on Molecular and Morphological Data 基于分子和形态学数据的中央舌和盾壳兰的系统发育位置

IF 1 3区生物学

Systematic Botany Pub Date : 2022-12-12 DOI: 10.1600/036364422X16674053033877

Carla A Royer, A. L. V. TOSCANO DE BRITO, A. V. Mauad, E. Smidt

{"title":"Phylogenetic Position of Centroglossa and Dunstervillea (Ornithocephalus Clade: Oncidiinae: Orchidaceae) Based on Molecular and Morphological Data","authors":"Carla A Royer, A. L. V. TOSCANO DE BRITO, A. V. Mauad, E. Smidt","doi":"10.1600/036364422X16674053033877","DOIUrl":"https://doi.org/10.1600/036364422X16674053033877","url":null,"abstract":"Abstract Even though the monophyly of the Ornithocephalus clade (Oncidiinae) is currently well defined, the systematic positioning of Centroglossa and Dunstervillea remains obscure in the clade due to the absence in previous phylogenetic studies. Centroglossa has a very similar habit and is indistinguishable from Zygostates, whereas Dunstervillea has as its main characteristic the calcarate labellum, also found in Centroglossa. We clarify the systematic and phylogenetic positioning of Centroglossa and Dunstervillea in the Ornithocephalus clade (OC) through analysis of maximum likelihood, Bayesian inference, and maximum parsimony from molecular data (nrITS and matK cpDNA) and morphology. Our results indicate that Dunstervillea is phylogenetically close to Eloyella; both genera have a psigmoid habit, single-sided and flattened leaves, floral perianth with the same coloring, petals with entire margins, and a short rostellum. Centroglossa appears as a subclade within Zygostates. In addition to several homoplastic features, these two genera have the dorsal position of viscidium as a synapomorphy. The calcarate labellum, common to Centroglossa and Dunstervillea, originated more than once in the OC. Based on the phylogenetic results, we propose the nomenclatural changes to include Dunstervillea in Eloyella and Centroglossa in Zygostates. New synonyms are indicated to Zygostates greeniana and Z. nunes-limae and lectotypes are indicated to Centroglossa macroceras and C. glaziovii.","PeriodicalId":54438,"journal":{"name":"Systematic Botany","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46105356","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

An Overlooked New Species of Macroptilium (Leguminosae-Papilionoideae) from Northeastern Brazil 标题巴西东北部一被忽视新种(豆科-凤蝶科)

IF 1 3区生物学

Systematic Botany Pub Date : 2022-12-12 DOI: 10.1600/036364422X16674053033840

Carolina Lima Ribeiro, Cristiane Snak, Felipe da Silva Santos, L. P. de Queiroz

引用次数: 0

Inselbergs Again: Four New Species of Mandevilla (Apocynaceae) from Brazil 再论inselberg:巴西曼德拉(夹竹桃科)四新种

IF 1 3区生物学

Systematic Botany Pub Date : 2022-12-12 DOI: 10.1600/036364422X16674053033912

J. Morales, A. Fontana, L. J. C. Kollmann, C. N. Fraga

{"title":"Inselbergs Again: Four New Species of Mandevilla (Apocynaceae) from Brazil","authors":"J. Morales, A. Fontana, L. J. C. Kollmann, C. N. Fraga","doi":"10.1600/036364422X16674053033912","DOIUrl":"https://doi.org/10.1600/036364422X16674053033912","url":null,"abstract":"Abstract Four new species of Mandevilla from inselbergs in Espírito Santo, Brazil are described, including illustrations, and maps. Mandevilla declinata resembles M. crassinoda but differs by leaf blades acuminate to long acuminate and longer corolla. Mandevilla fornograndensis is distinguished from morphologically similar species by its yellow corolla. Mandevilla mysteriosa is morphologically similar to M. lucida but differs by its longer petioles, leaf blade characters, shorter corolla tube, and smaller anthers; Mandevilla obovata resembles M. hatschbachii, but it is separated by its puberulent leaves, longer sepals, and white corolla. An informal evaluation of the conservation status according to IUCN guidelines is proposed for each species: M. declinata (VU: D2), M. fornograndensis (VU: D2), M. mysteriosa (VU: D2), and M. obovata (VU: B1ab(i,ii,iii)+2ab(i,ii,iii)). A key to the species of Mandevilla in Espírito Santo is included. Resumo Quatro novas espécies de Mandevilla são descritas dos inselbergs do estado do Espírito Santo, Brasil, incluindo ilustrações e mapas. Mandevilla declinata assemelha-se a M. crassinoda, diferindo pelas lâminas foliares acuminadas a longamente acuminadas e corola mais longa. Mandevilla fornograndensis distingue-se de espécies morfologicamente semelhantes pela sua corola amarela. Mandevilla mysteriosa é morfologicamente semelhante a M. lucida, mas difere desta pelos pecíolos mais longos, caracteres das lâminas foliares, tubo de corola mais curto e anteras menores. Mandevilla obovata assemelha-se a M. hatschbachii, mas é diferenciada por suas folhas puberulentas, sépalas mais longas e corola branca. A avaliação informal do estado de conservação de cada espécie foi realizada de acordo com os critérios da IUCN: M. declinata (VU: D2), M. fornograndensis (VU: D2), M. mysteriosa (VU: D2), and M. obovata (VU: B1ab(i,ii,iii)+2ab(i,ii,iii)). É apresentada uma chave para identificação das oito espécies de Mandevilla do Espírito Santo.","PeriodicalId":54438,"journal":{"name":"Systematic Botany","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43518774","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: 2

A Taxonomic Revision of Chamaecrista (Caesalpinioideae, Cassieae, Cassiinae) in Southern Africa 标题南部非洲樟树属(樟树科，樟树科，樟树科)的分类学修订

IF 1 3区生物学

Systematic Botany Pub Date : 2022-12-12 DOI: 10.1600/036364422X16674053033831

L. Musandiwa, A. Magee, J. Boatwright

{"title":"A Taxonomic Revision of Chamaecrista (Caesalpinioideae, Cassieae, Cassiinae) in Southern Africa","authors":"L. Musandiwa, A. Magee, J. Boatwright","doi":"10.1600/036364422X16674053033831","DOIUrl":"https://doi.org/10.1600/036364422X16674053033831","url":null,"abstract":"Abstract The southern African species of Chamaecrista were all treated under Cassia in Gordon-Gray's treatment for the Flora of Southern Africa. However, given the subsequent generic recircumscriptions in the subtribe Cassiinae, and the expanded collections of these taxa, there is a need to revisit the taxonomy of the group. The present study aimed to conduct a detailed taxonomic revision of the species of Chamaecrista indigenous to the flora of southern Africa region. Extensive fieldwork was carried out to study the taxa in their natural environment and morphological characters were additionally studied using herbarium material. The revision presented here includes comprehensive descriptions, a key to the species, nomenclature, typifications, diagnostic characters with illustrations, and geographical distribution maps of all recognised taxa. Eleven species of Chamaecrista are recognised for the flora of southern Africa, two of which are described as new, i.e. Chamaecrista grandiglandulata and C. gordon-grayei. In addition, one new subspecies is described, namely C. gordon-grayei subsp. longipedicellata, while Chamaecrista comosa var. capriconia is raised to the rank of subspecies, viz. Chamaecrista comosa subsp. capriconia. The typifications published here include lectotypes designated for Chamaecrista plumosa and C. stricta, neotypes designated for C. capensis var. flavescens, C. comosa, and C. plumosa var. diffusa, and an isolectotype designated for C. stricta.","PeriodicalId":54438,"journal":{"name":"Systematic Botany","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43220177","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

A New Species of Evolvulus (Convolvulaceae): A Rare and Threatened Species from the Brazilian Cerrado, a Neotropical Biodiversity Hotspot 新热带生物多样性热点——巴西塞拉多地区一种珍稀濒危种——旋花属一新种

IF 1 3区生物学

Systematic Botany Pub Date : 2022-12-12 DOI: 10.1600/036364422X16674053033868

Diego Santos, C. Amorim, M. D. da Silva, M. T. Buril

{"title":"A New Species of Evolvulus (Convolvulaceae): A Rare and Threatened Species from the Brazilian Cerrado, a Neotropical Biodiversity Hotspot","authors":"Diego Santos, C. Amorim, M. D. da Silva, M. T. Buril","doi":"10.1600/036364422X16674053033868","DOIUrl":"https://doi.org/10.1600/036364422X16674053033868","url":null,"abstract":"Abstract As part of the taxonomic revision of Evolvulus section Lagopodini (Convolvulaceae), a new species was found in the Brazilian Cerrado, a Neotropical biodiversity hotspot, and it is informally categorized herein as endangered. Evolvulus veadeirensis sp. nov. is characterized by the subshrub habit, slender and cylindrical stems, lanceolate leaves, leaf base that is attenuate or obtuse, and clavate stigmatic lobes. Among the species in that section, E. veadeirensis sp. nov. is more similar to E. altissimus, differing from the latter mainly by height, the shape of the leaf blade, leaf apex, and the stigmatic lobes. A diagnosis, morphological descriptions, illustrations, taxonomic comments, informal conservation status, distribution map, photographs, and an identification key for species from Chapada dos Veadeiros are presented. Resumo Como parte da revisão taxonômica de Evolvulus sect. Lagopodini (Convolvulaceae), uma nova espécie foi descoberta no Cerrado Brasileiro, um Hotspot Neotropical de Biodiversidade, e foi categorizada informalmente aqui como ameaçada. Evolvulus veadeirensis sp. nddov. é caracterizada pelo hábito subarbustivo, caules delgados e cilíndricos, folhas lanceoladas, base foliar atenuada ou obtusa, e lóbulos estigmáticos clavados. Entre as espécies dessa seção, E. veadeirensis é mais semelhante a E. altissimus, diferindo desta principalmente pela altura, forma da lâmina, ápice foliar, e forma dos lóbulos estigmáticos. Apresentamos uma diagnose, descrição morfológica, ilustrações, comentários taxonômicos, estado de conservação informal, mapa de distribuição, fotografias e uma chave de identificação para as espécies ocorrentes na Chapada dos Veadeiros.","PeriodicalId":54438,"journal":{"name":"Systematic Botany","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46772250","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