Pub Date : 2023-06-21DOI: 10.1600/036364423X16847773873080
Edicson Parra‐Sanchez, Luis E. Baquero
Abstract Thirteen species (18%) in the genus Dracula (Orchidaceae) in Colombia lack basic information about their ecology and biogeography. Dracula anthracina has remained as a charismatic market-valued species with no information on its natural habitat. We found the precise location of D. anthracina in explorations across the Colombian eastern Cordillera. Our observations of wild populations and cultivated plants suggest that D. nigritella should be reduced to a synonym of D. anthracina based on morphological characters. Furthermore, the species seems to be rare, geographically restricted, and has small populations. Hence, we suggest that D. anthracina should be considered of conservation concern and should be excluded from Ecuador's flora. Resumen Trece especies (18%) del género Dracula en Colombia carecen de información básica de su biogeográfica y ecológica. Dracula anthracina es una especie de alto valor en el mercado, cuya información del habito natural ha permanecido históricamente obscuro. Durante exploraciones de la orquideoflora de la cordillera oriental de Colombia, encontramos la ubicación de D. anthracina. Tras estudiar los caracteres morfológicos de individuos de D. anthracina en su hábitat natural y material cultivado, encontramos que D. nigritella debe ser reducido a sinónimo de D. anthracina. Nuestro muestreo aleatorio sugiere que esta Dracula es rara, con distribución geográfica restringida y poblaciones pequeñas. De tal manera, D. anthracina como especie comercializada debe ser considerada como una especie de conservación endémica de Colombia y debe ser excluida de la flora de Ecuador.
{"title":"Circumscription, First Confirmed Locality, and Conservation Status of Dracula anthracina (Orchidaceae)","authors":"Edicson Parra‐Sanchez, Luis E. Baquero","doi":"10.1600/036364423X16847773873080","DOIUrl":"https://doi.org/10.1600/036364423X16847773873080","url":null,"abstract":"Abstract Thirteen species (18%) in the genus Dracula (Orchidaceae) in Colombia lack basic information about their ecology and biogeography. Dracula anthracina has remained as a charismatic market-valued species with no information on its natural habitat. We found the precise location of D. anthracina in explorations across the Colombian eastern Cordillera. Our observations of wild populations and cultivated plants suggest that D. nigritella should be reduced to a synonym of D. anthracina based on morphological characters. Furthermore, the species seems to be rare, geographically restricted, and has small populations. Hence, we suggest that D. anthracina should be considered of conservation concern and should be excluded from Ecuador's flora. Resumen Trece especies (18%) del género Dracula en Colombia carecen de información básica de su biogeográfica y ecológica. Dracula anthracina es una especie de alto valor en el mercado, cuya información del habito natural ha permanecido históricamente obscuro. Durante exploraciones de la orquideoflora de la cordillera oriental de Colombia, encontramos la ubicación de D. anthracina. Tras estudiar los caracteres morfológicos de individuos de D. anthracina en su hábitat natural y material cultivado, encontramos que D. nigritella debe ser reducido a sinónimo de D. anthracina. Nuestro muestreo aleatorio sugiere que esta Dracula es rara, con distribución geográfica restringida y poblaciones pequeñas. De tal manera, D. anthracina como especie comercializada debe ser considerada como una especie de conservación endémica de Colombia y debe ser excluida de la flora de Ecuador.","PeriodicalId":54438,"journal":{"name":"Systematic Botany","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45949911","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}
Abstract Paraphlomis caloneura, a new species from Guangxi Zhuang Autonomous Region, China, is described and illustrated. Molecular phylogenetic analyses based on two nuclear ribosomal DNA regions (ITS and ETS) and three plastid DNA markers (rpl32-trnL, rps16, and trnL-trnF) revealed that the new species is sister to P. hirsutissima. Both species are found in the limestone forests and are geographically close to each other, but P. caloneura can be easily distinguished from P. hirsutissima by its oblong or ovate-oblong and adaxially densely hispid laminas with broadly cuneate to cordate bases, densely hispid petioles, and slightly 2-lobed margins of upper corolla lips.
{"title":"Paraphlomis caloneura (Lamiaceae), a New Species from Guangxi, China","authors":"KE-JIAN Yan, Yun‐Feng Huang, Xiong-Hui Li, REN-CHUAN Hu, Wang‐Hui Wu, Ya‐Ping Chen","doi":"10.1600/036364423X16847773873198","DOIUrl":"https://doi.org/10.1600/036364423X16847773873198","url":null,"abstract":"Abstract Paraphlomis caloneura, a new species from Guangxi Zhuang Autonomous Region, China, is described and illustrated. Molecular phylogenetic analyses based on two nuclear ribosomal DNA regions (ITS and ETS) and three plastid DNA markers (rpl32-trnL, rps16, and trnL-trnF) revealed that the new species is sister to P. hirsutissima. Both species are found in the limestone forests and are geographically close to each other, but P. caloneura can be easily distinguished from P. hirsutissima by its oblong or ovate-oblong and adaxially densely hispid laminas with broadly cuneate to cordate bases, densely hispid petioles, and slightly 2-lobed margins of upper corolla lips.","PeriodicalId":54438,"journal":{"name":"Systematic Botany","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49016512","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}
Pub Date : 2023-06-21DOI: 10.1600/036364423X16847773873152
Maycon Jordan Costa da Silva, Lamarck Rocha, A. W. Ferreira, A. Scatigna, L. Marinho
Abstract Turnera carolina, a new species from Chapada das Mesas region in the Brazilian Cerrado, is described and illustrated. The new taxon can be characterized by having internodes up to 5 cm long, leaves with dark spots on both sides, petals that are smaller than the sepals, bracts and calyx that are usually reddish, and an orange corolla. We also present a distribution map, illustrations, field photos, comments on taxonomy, and an identification key to the species of Turnera from Chapada das Mesas National Park and surroundings.
摘要本文报道了巴西塞拉多州Chapada das Mesas地区的一新种Turnera carolina。这个新分类群的特征是节间长达5厘米，叶子两侧有黑点，花瓣比萼片小，苞片和花萼通常是红色的，花冠是橙色的。本文还介绍了在恰帕达达斯梅萨斯国家公园及其周边地区发现的特纳拉属植物的分布图、插图、野外照片、分类评论和鉴定钥匙。
{"title":"Turnera carolina (Turneraceae, Passifloraceae s.l.): A New Species from Chapada das Mesas, Maranhão, Northeastern Brazil","authors":"Maycon Jordan Costa da Silva, Lamarck Rocha, A. W. Ferreira, A. Scatigna, L. Marinho","doi":"10.1600/036364423X16847773873152","DOIUrl":"https://doi.org/10.1600/036364423X16847773873152","url":null,"abstract":"Abstract Turnera carolina, a new species from Chapada das Mesas region in the Brazilian Cerrado, is described and illustrated. The new taxon can be characterized by having internodes up to 5 cm long, leaves with dark spots on both sides, petals that are smaller than the sepals, bracts and calyx that are usually reddish, and an orange corolla. We also present a distribution map, illustrations, field photos, comments on taxonomy, and an identification key to the species of Turnera from Chapada das Mesas National Park and surroundings.","PeriodicalId":54438,"journal":{"name":"Systematic Botany","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47630927","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}
Pub Date : 2023-06-21DOI: 10.1600/036364423X16847773873116
Carol A. Wilson, Zoe Boosalis, Michael Sandor, M. B. Crespo, Mario Martínez‐Azorín
Abstract Iris subgenus Xiphium is a small group of taxa that occur in the Mediterranean Basin, a long-recognized biodiversity hotspot. Phylogenetic relationships among these Iris were reconstructed based on sequence data from 110 nuclear markers (coding regions) and plastomes using Bayesian inference and maximum likelihood methods. Best trees based on plastome and combined datasets resolved Iris subgenus Xiphium and I. xiphium as not monophyletic while nuclear and all-gene (combined nuclear and plastid coding regions) datasets resolved the subgenus as monophyletic but I. xiphium as not monophyletic. Topology tests indicated the alternative hypothesis of a monophyletic subgenus is not rejected by the combined dataset while a monophyletic I. xiphium is rejected. Topology tests also showed the hypothesis of a polyphyletic subgenus is rejected by the nuclear and all-gene datasets, however, a monophyletic I. xiphium is not rejected by these two datasets. We hypothesize that the subgenus is monophyletic based on these analyses, morphology, and biogeography, and that uneven patterns of missing data is a likely reason for topological incongruence among datasets. A previously suggested informal group within the subgenus was supported. Patterns of relationships among species suggest multiple exchanges between the African and European continents but also the importance of the Strait of Gibraltar as a barrier to genetic exchange.
{"title":"Phylogeny of Species, Infraspecific Taxa, and Forms in Iris Subgenus Xiphium (Iridaceae), from the Mediterranean Basin Biodiversity Hotspot","authors":"Carol A. Wilson, Zoe Boosalis, Michael Sandor, M. B. Crespo, Mario Martínez‐Azorín","doi":"10.1600/036364423X16847773873116","DOIUrl":"https://doi.org/10.1600/036364423X16847773873116","url":null,"abstract":"Abstract Iris subgenus Xiphium is a small group of taxa that occur in the Mediterranean Basin, a long-recognized biodiversity hotspot. Phylogenetic relationships among these Iris were reconstructed based on sequence data from 110 nuclear markers (coding regions) and plastomes using Bayesian inference and maximum likelihood methods. Best trees based on plastome and combined datasets resolved Iris subgenus Xiphium and I. xiphium as not monophyletic while nuclear and all-gene (combined nuclear and plastid coding regions) datasets resolved the subgenus as monophyletic but I. xiphium as not monophyletic. Topology tests indicated the alternative hypothesis of a monophyletic subgenus is not rejected by the combined dataset while a monophyletic I. xiphium is rejected. Topology tests also showed the hypothesis of a polyphyletic subgenus is rejected by the nuclear and all-gene datasets, however, a monophyletic I. xiphium is not rejected by these two datasets. We hypothesize that the subgenus is monophyletic based on these analyses, morphology, and biogeography, and that uneven patterns of missing data is a likely reason for topological incongruence among datasets. A previously suggested informal group within the subgenus was supported. Patterns of relationships among species suggest multiple exchanges between the African and European continents but also the importance of the Strait of Gibraltar as a barrier to genetic exchange.","PeriodicalId":54438,"journal":{"name":"Systematic Botany","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45579869","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}
Pub Date : 2023-03-30DOI: 10.1600/036364423x16758873924090
D. Silva, Mirian C.A. Antonicelli, Paulo José Fernandes Guimaraes
Abstract— During a botanical expedition carried out by the Centro Nacional de Conservação da Flora to northern Minas Gerais, Brazil, the first records of Melastomataceae were catalogued for the Morro das Marombas, in the Serra de Montevidéu, situated on the Espinhaço Septentrional. These first records and an identification key for the melastomes from Morro das Marombas are presented. Among these records, the first collection of Marcetia viscida is documented in Minas Gerais, and two new microendemic species of Pleroma were found and are described and illustrated here. Pleroma congestifolium resembles three congeners from the Cerrado of Minas Gerais (P. ferricolum, P. martinellii, and P. trinervium) to which it is compared, and their morphological relationships and differences are discussed. Pleroma martinellii is a remarkable new species, and it can be morphologically approximated to two species (P. congestifolium and P. velutinum) from the Cerrado of Minas Gerais and Bahia. Preliminarily, we suggest the Deficient Data category as the conservation status for both species.
摘要:在巴西国家植物保护中心(Centro Nacional de conserva o da Flora)对巴西米纳斯吉拉斯州北部进行的一次植物学考察中，在espinhao Septentrional的Serra de montevidsamu的Morro das Marombas地区对Melastomataceae的第一批记录进行了分类。这些最早的记录和鉴定钥匙来自Morro das Marombas。在这些记录中,第一组Marcetia viscida记录在米纳斯吉拉斯,和两个新的佩雷若玛microendemic物种被发现,并在这里进行描述和演示。本文比较了米纳斯吉拉斯塞拉多的三种同系物(P. ferricolum, P. martinellii和P. trinervium)，并讨论了它们的形态关系和差异。马氏柏属(Pleroma martinellii)是一个引人注目的新种，在形态上与米纳吉拉斯州和巴伊亚州塞拉多的两个种(P. conestifolium和P. velutinum)相似。我们初步建议这两个物种的保护状态为数据不足。
{"title":"Taxonomic Novelties from the Espinhaço Septentrional: Two New Species of Pleroma and the First Records of Melastomataceae from the Morro das Marombas, Minas Gerais, Brazil","authors":"D. Silva, Mirian C.A. Antonicelli, Paulo José Fernandes Guimaraes","doi":"10.1600/036364423x16758873924090","DOIUrl":"https://doi.org/10.1600/036364423x16758873924090","url":null,"abstract":"Abstract— During a botanical expedition carried out by the Centro Nacional de Conservação da Flora to northern Minas Gerais, Brazil, the first records of Melastomataceae were catalogued for the Morro das Marombas, in the Serra de Montevidéu, situated\u0000 on the Espinhaço Septentrional. These first records and an identification key for the melastomes from Morro das Marombas are presented. Among these records, the first collection of Marcetia viscida is documented in Minas Gerais, and two new microendemic species of Pleroma\u0000 were found and are described and illustrated here. Pleroma congestifolium resembles three congeners from the Cerrado of Minas Gerais (P. ferricolum, P. martinellii, and P. trinervium) to which it is compared, and their morphological relationships and differences\u0000 are discussed. Pleroma martinellii is a remarkable new species, and it can be morphologically approximated to two species (P. congestifolium and P. velutinum) from the Cerrado of Minas Gerais and Bahia. Preliminarily, we suggest the Deficient Data category as the\u0000 conservation status for both species.","PeriodicalId":54438,"journal":{"name":"Systematic Botany","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67390983","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}
Pub Date : 2023-03-28DOI: 10.1600/036364423X16758873924144
Hui Shang, Li-Bing Zhang
Abstract The fern genus Didymochlaena is characterized by having scaly rhizomes and petioles, tufted and bipinnate leaves, dimidiate pinnules, and fewer than 11 sori per pinnule. For a long time only one species was widely recognized in the genus. Most recently, six and seven species from Madagascar and Asia-Pacific regions, respectively, have been recognized based on morphological and/or molecular evidence. In this monographic study we recognize 22 species worldwide, six of which are described as new: D. alpina, D. amazonica, D. cameroonensis, D. comorensis, D. cubensis, and D. mesoamericana. A key to all species is provided, and detailed descriptions, illustrations, and information on their distribution and habitats are given.
{"title":"Systematics of the Fern Genus Didymochlaena (Didymochlaenaceae)","authors":"Hui Shang, Li-Bing Zhang","doi":"10.1600/036364423X16758873924144","DOIUrl":"https://doi.org/10.1600/036364423X16758873924144","url":null,"abstract":"Abstract The fern genus Didymochlaena is characterized by having scaly rhizomes and petioles, tufted and bipinnate leaves, dimidiate pinnules, and fewer than 11 sori per pinnule. For a long time only one species was widely recognized in the genus. Most recently, six and seven species from Madagascar and Asia-Pacific regions, respectively, have been recognized based on morphological and/or molecular evidence. In this monographic study we recognize 22 species worldwide, six of which are described as new: D. alpina, D. amazonica, D. cameroonensis, D. comorensis, D. cubensis, and D. mesoamericana. A key to all species is provided, and detailed descriptions, illustrations, and information on their distribution and habitats are given.","PeriodicalId":54438,"journal":{"name":"Systematic Botany","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44155921","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}
Pub Date : 2023-03-28DOI: 10.1600/036364423X16758873924117
J. Landis, J. Doyle
Abstract The legume genus, Glycine, which includes the Asian annual cultivated soybean, also includes a group of Australian perennial species comprising the subgenus Glycine. Because the subgenus Glycine represents the tertiary gene pool for one of the world's most important crops, the group has been the target of collection and study for decades, resulting in a steady growth in the number of formally recognized species, from six in the 1970s to over 20 at present, as well as a number of additional informal taxa. These studies have also produced a system of nuclear diploid “genome groups” corresponding to clades in molecular phylogenies. The aptly named G. remota is known only from a single isolated population in the Kimberley region of northwestern Australia and was named only in 2015. The species is unique within Glycine in having unifoliolate leaves; its discoverers hypothesized that G. remota, if diploid, is related to species of the I-genome that are also native to the Kimberley region. We produced low coverage short-read genome sequencing data from an herbarium specimen of G. remota. Genome size estimates from the sequencing data suggests that G. remota is a diploid, while ploidy estimation is inconclusive likely due to the history of whole genome duplication in Glycine. Phylogenomic analyses of genome-wide SNPs, as well as phylogenetic analyses of the low copy nuclear gene (histone H3D), the entire ribosomal RNA cistron, and the internal transcribed spacer all placed the species unequivocally in the diploid I-genome clade. A complete plastome sequence was also generated and its placement with a plastome phylogeny is also consistent with membership in the I-genome.
{"title":"Genomic Relationships of Glycine Remota, a Recently Discovered Perennial Relative of Soybean, within Glycine","authors":"J. Landis, J. Doyle","doi":"10.1600/036364423X16758873924117","DOIUrl":"https://doi.org/10.1600/036364423X16758873924117","url":null,"abstract":"Abstract The legume genus, Glycine, which includes the Asian annual cultivated soybean, also includes a group of Australian perennial species comprising the subgenus Glycine. Because the subgenus Glycine represents the tertiary gene pool for one of the world's most important crops, the group has been the target of collection and study for decades, resulting in a steady growth in the number of formally recognized species, from six in the 1970s to over 20 at present, as well as a number of additional informal taxa. These studies have also produced a system of nuclear diploid “genome groups” corresponding to clades in molecular phylogenies. The aptly named G. remota is known only from a single isolated population in the Kimberley region of northwestern Australia and was named only in 2015. The species is unique within Glycine in having unifoliolate leaves; its discoverers hypothesized that G. remota, if diploid, is related to species of the I-genome that are also native to the Kimberley region. We produced low coverage short-read genome sequencing data from an herbarium specimen of G. remota. Genome size estimates from the sequencing data suggests that G. remota is a diploid, while ploidy estimation is inconclusive likely due to the history of whole genome duplication in Glycine. Phylogenomic analyses of genome-wide SNPs, as well as phylogenetic analyses of the low copy nuclear gene (histone H3D), the entire ribosomal RNA cistron, and the internal transcribed spacer all placed the species unequivocally in the diploid I-genome clade. A complete plastome sequence was also generated and its placement with a plastome phylogeny is also consistent with membership in the I-genome.","PeriodicalId":54438,"journal":{"name":"Systematic Botany","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46639145","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}
Pub Date : 2023-03-28DOI: 10.1600/036364423X16758873924126
M. Pastore, R. Simão-Bianchini, Daiane Alves dos Santos, Daniela Santos CARNEIRO TORRES, P. Viana
Abstract A new species of liana, Dicranostyles yrypoana (Convolvulaceae) is described from the Central Amazon rainforest in Brazil. The specimens of D. yrypoana remained with dubious identification in herbaria for at least 60 yr. This new species is distinguished from other species of Dicranostyles mainly for its tomentose leaves, in addition to its cylindric glabrous ovary, short style (0.5–0.6 mm long), and globose stigma. The specific epithet yrypoana refers to yripo, which means liana in the language of the Sateré-Mawé people that originally live in the region of occurrence of this new species. We provide morphological and palynologic descriptions, a distribution map, illustrations, taxonomy comments, an identification key, and comparisons with similar species. Dicranostyles yrypoana is informally assessed as Endangered (EN) based on IUCN criteria and guidelines. Resumo Uma nova espécie de liana, Dicranostyles yrypoana (Convolvulaceae), é descrita para a floresta da Amazônia Central no Brasil. Os espécimes de D. yrypoana permaneceram nos herbários com identificação duvidosa por pelo menos 60 anos. Esta nova espécie é distinguida das outras espécies de Dicranostyles principalmente por suas folhas tomentosas, além de seu ovário cilíndrico e glabro, estilete curto (0.5–0.6 mm compr.) e estigma globoso. O epíteto específico yrypoana refere-se a yrypo que significa cipó na linguagem dos Sateré-Mawé, povos originários da região de ocorrência desta nova espécie. Nós fornecemos descrições morfológica e palinológica, mapa de distribuição, ilustrações, comentários taxonômicos, chave de identificação e comparação com espécies similares. Dicranostyles yrypoana é avaliada informalmente como Em Perigo (EN) baseada nos critérios e instruções da IUCN.
{"title":"The Discovery of a New Species of Convolvulaceae: Dicranostyles yrypoana from the Brazilian Amazon Rainforest","authors":"M. Pastore, R. Simão-Bianchini, Daiane Alves dos Santos, Daniela Santos CARNEIRO TORRES, P. Viana","doi":"10.1600/036364423X16758873924126","DOIUrl":"https://doi.org/10.1600/036364423X16758873924126","url":null,"abstract":"Abstract A new species of liana, Dicranostyles yrypoana (Convolvulaceae) is described from the Central Amazon rainforest in Brazil. The specimens of D. yrypoana remained with dubious identification in herbaria for at least 60 yr. This new species is distinguished from other species of Dicranostyles mainly for its tomentose leaves, in addition to its cylindric glabrous ovary, short style (0.5–0.6 mm long), and globose stigma. The specific epithet yrypoana refers to yripo, which means liana in the language of the Sateré-Mawé people that originally live in the region of occurrence of this new species. We provide morphological and palynologic descriptions, a distribution map, illustrations, taxonomy comments, an identification key, and comparisons with similar species. Dicranostyles yrypoana is informally assessed as Endangered (EN) based on IUCN criteria and guidelines. Resumo Uma nova espécie de liana, Dicranostyles yrypoana (Convolvulaceae), é descrita para a floresta da Amazônia Central no Brasil. Os espécimes de D. yrypoana permaneceram nos herbários com identificação duvidosa por pelo menos 60 anos. Esta nova espécie é distinguida das outras espécies de Dicranostyles principalmente por suas folhas tomentosas, além de seu ovário cilíndrico e glabro, estilete curto (0.5–0.6 mm compr.) e estigma globoso. O epíteto específico yrypoana refere-se a yrypo que significa cipó na linguagem dos Sateré-Mawé, povos originários da região de ocorrência desta nova espécie. Nós fornecemos descrições morfológica e palinológica, mapa de distribuição, ilustrações, comentários taxonômicos, chave de identificação e comparação com espécies similares. Dicranostyles yrypoana é avaliada informalmente como Em Perigo (EN) baseada nos critérios e instruções da IUCN.","PeriodicalId":54438,"journal":{"name":"Systematic Botany","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47484206","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}
Pub Date : 2023-03-28DOI: 10.1600/036364423X16758877666057
J. Pruski, G. Nesom
Dr. Thomas B. Croat (Fig. 1), intrepid explorer, fl oristician by trade, and noted specialist in taxonomy of Araceae (Aroids) at the Missouri Botanical Garden, was presented with the 2022 Asa Gray Award of the American Society of Plant Taxonomists on July 26, 2022 during the ASPT banquet and awards ceremony at the Botany 2022 meetings in Anchorage. It is hard to imagine anyone much more deserving of the Asa Gray Award than Dr. Thomas Croat. The award recognizes taxonomists with outstanding accomplishments in “ fi elds of study that contribute to and bear upon taxonomy and herbaria
{"title":"Thomas B. Croat—Recipient of the 2022 Asa Gray Award","authors":"J. Pruski, G. Nesom","doi":"10.1600/036364423X16758877666057","DOIUrl":"https://doi.org/10.1600/036364423X16758877666057","url":null,"abstract":"Dr. Thomas B. Croat (Fig. 1), intrepid explorer, fl oristician by trade, and noted specialist in taxonomy of Araceae (Aroids) at the Missouri Botanical Garden, was presented with the 2022 Asa Gray Award of the American Society of Plant Taxonomists on July 26, 2022 during the ASPT banquet and awards ceremony at the Botany 2022 meetings in Anchorage. It is hard to imagine anyone much more deserving of the Asa Gray Award than Dr. Thomas Croat. The award recognizes taxonomists with outstanding accomplishments in “ fi elds of study that contribute to and bear upon taxonomy and herbaria","PeriodicalId":54438,"journal":{"name":"Systematic Botany","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45846564","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}
Pub Date : 2023-03-28DOI: 10.1600/036364423X16758873924054
Rita de Cássia Alves Menezes São Paulo, Cristiane Snak, L. P. de Queiroz
Abstract Indigofera is a genus of the tribe Indigofereae (Leguminosae, Papilionoideae), with approximately 750 species distributed across tropical and subtropical regions of the world. In Brazil, the genus is associated mostly with the seasonally dry biomes of Caatinga and Cerrado, where 12 out of the 13 species recorded in Brazil occur. A close examination of the morphological variation in the Caatinga species showed that more than one species could be identified among the specimens referred to as I. blanchetiana. We thus propose the new species I. morroensis, which is distinguishable from I. blanchetiana by its habit, the number, shape, and hairiness of leaflets, and shape of the fruit. Indigofera morroensis occurs on sand dunes of the Morro do Chapéu municipality in Bahia state and its conservation status was assessed as Endangered. We provide the description, illustration, taxonomic comments, and distribution map for this new species, as well as an identification key for the species from Northeastern Brazil, including those that occur in the Caatinga.
靛蓝属(Indigofera)是靛蓝科(豆科，凤蝶科)的一个属，大约有750种，分布在世界的热带和亚热带地区。在巴西，该属主要与Caatinga和Cerrado的季节性干旱生物群落有关，在巴西记录的13种中有12种发生在那里。对Caatinga种的形态变异进行了仔细的研究，发现在被称为I. blanchetiana的标本中可以鉴定出不止一个种。因此，我们提出了一个新种morroensis，它可以通过其习性，小叶的数量，形状，毛羽和果实的形状来区分。morroensis生长在巴伊亚州Morro do chapsamu市的沙丘上，其保护状况被评估为濒危物种。我们提供了该新种的描述、图解、分类评论和分布图，以及巴西东北部包括Caatinga地区的物种的鉴定密钥。
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