PhytoKeys最新文献

{"title":"<i>Bambusarushunii</i> (Poaceae, Bambusoideae, Bambuseae), a new bamboo species from Guangdong, China.","authors":"Jing-Bo Ni, Meng-Ling Li, Shu-Peng Dong, Yi-Hua Tong","doi":"10.3897/phytokeys.253.143389","DOIUrl":"https://doi.org/10.3897/phytokeys.253.143389","url":null,"abstract":"<p><p>A new bamboo species, <i>Bambusarushunii</i>, from Yangjiang City, Guangdong Province, China, is described and illustrated in this paper. The new species resembles <i>B.gibba</i> and <i>B.dissimulator</i> in having branchlets specialised into weak thorns at the lower nodes of culms, but can be easily distinguished from the latter two by having one or two extremely shortened internodes at the culm base, glabrous internode, culm leaf sheath being dark brown strigose on the central part and with a nearly truncate or slightly obliquely truncate apex, relatively high culm leaf ligule, culm leaf blade base not narrowed, extending outwards and contiguous with auricles and the glabrous foliage leaf with a ciliate ligule margin.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"253 ","pages":"133-141"},"PeriodicalIF":1.3,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11898096/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143616781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The genus <i>Plagiothecium</i> (Plagiotheciaceae) in Europe - current state of knowledge, checklist and key to taxa.","authors":"Grzegorz J Wolski","doi":"10.3897/phytokeys.253.142268","DOIUrl":"https://doi.org/10.3897/phytokeys.253.142268","url":null,"abstract":"<p><p>This manuscript presents current knowledge of the taxonomy, variability and distribution of taxa of the genus <i>Plagiothecium</i> in Europe. Currently the genus comprises 31 taxa: 17 species and 14 varieties. In this study I designated 10 lectotypes and proposes six new synonyms for the described taxa, in addition five new nomenclatural combinations: P.denticulatumvar.pseudosylvaticum, P.denticulatumvar.pungens, P.laetumvar.hercinicum, P.succulentumvar.cryptarum, and P.sylvaticumvar.immersum. Detailed descriptions and distribution data for each taxon, illustrations highlighting key taxonomic features and a diagnostic key are also provided to facilitate the identification of individual taxa.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"253 ","pages":"67-102"},"PeriodicalIF":1.3,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11898098/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143616785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"<i>Columneagolondrinensis</i> (Gesneriaceae), a new species from Cerro Golondrinas in the northern Andes of Ecuador.","authors":"John L Clark","doi":"10.3897/phytokeys.253.144114","DOIUrl":"https://doi.org/10.3897/phytokeys.253.144114","url":null,"abstract":"<p><p>Exploratory field expeditions to the Chocó forests in the northern Andes of Ecuador resulted in the discovery of a new species of <i>Columnea</i> (Gesneriaceae). <i>Columneagolondrinensis</i> J.L.Clark, <b>sp. nov.</b>, is described as a narrow endemic from the cloud forests of Cerro Golondrinas in the Carchi Province near the northern Ecuadorian border with Colombia. The oval leaves with a rust-colored multicellular hispid indumentum, terrestrial subwoody habit and deeply bilabiate dark purple corollas with glandular trichomes differentiate this taxon from all other congeners. Based on IUCN guidelines, a preliminary conservation status of Vulnerable (VU) is provided for <i>C.golondrinensis</i>.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"253 ","pages":"1-9"},"PeriodicalIF":1.3,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11898048/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143616782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A digital multi-access key for easy identification of large tree species of ebony wood in Madagascar.","authors":"Hasina N Rakouth, Sylvie Andriambololonera, Bakolimalala Rakouth, Peter B Phillipson, Porter P Lowry Ii, Nicholas Wilding","doi":"10.3897/phytokeys.253.134319","DOIUrl":"https://doi.org/10.3897/phytokeys.253.134319","url":null,"abstract":"<p><p>In 2013, all populations of the precious wood genera <i>Dalbergia</i> (Fabaceae) and <i>Diospyros</i> (Ebenaceae) from Madagascar were placed on CITES Appendix II in an effort to combat unsustainable and illicit over-exploitation and illegal exportation for the international market. The accompanying Action Plan adopted by CITES identified several information and capacity gaps, which undermine the sustainable and equitable management of these valuable resources. These gaps include the lack of practical, reliable tools to identify species along the entire value chain, from standing trees to cut wood and finished products. To address this need, we developed simple, user-friendly, multi-access keys for the two genera in Madagascar using the Lucid application. This new tool provides highly accurate identification of standing and felled trees to assist actors in the forestry, regulatory, and natural resource management sectors, including customs officials and law enforcement authorities as well as conservationists and protected area managers. In this paper, we focus on the development of the <i>Diospyros</i> identification tool. This interactive, electronic key employs 109 informative characters, including morphological features, emphasizing vegetative structures such as bark, stems, and leaves that are present even in the absence of flowers and fruits, in conjunction with eco-geographic characters (bioclimate, elevation, and geography). The key is supplemented with photos, illustrations, and a comprehensive glossary, to deliver accurate identification of the 88 <i>Diospyros</i> species that are large enough to be potential sources of commercially valuable ebony wood (≥ 20 cm DBH and/or ≥ 20 m height). This is the first use of Lucid to develop an identification key for species in Madagascar, paving the way for its application to other taxa for which practical electronic field identification is needed.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"253 ","pages":"103-132"},"PeriodicalIF":1.3,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11898054/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143616784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"<i>Violaxinchengensis</i> (Violaceae), a new species from central Guangxi, China.","authors":"Gui-Yuan Wei, Chuan-Gui Xu, Ying-Jing Li, Bin Feng, Qi-Min Hu, Chao Yang, Xin-Cheng Qu, You Nong","doi":"10.3897/phytokeys.253.128972","DOIUrl":"https://doi.org/10.3897/phytokeys.253.128972","url":null,"abstract":"<p><p><i>Violaxinchengensis</i> (Violaceae), a new species from Guangxi, China, is established on the basis of morphological and molecular evidence. This new species resembles <i>V.lucens</i>, but differs from the latter by its stipules margin long fimbriate-dentate (vs. fimbriate-dentate), stolon absent (vs. stolon slender, often producing a new plant at the top) and sepals 4-6 mm, glabrous (vs. 2.5-3 mm, villous). <i>Violaxinchengensis</i> is similar to <i>V.fargesii</i>, but it can be easily distinguished by its pedicels sparsely white villous (vs. densely spreading white puberulous), stolon absent (vs. stolon longer, elongated, puberulous, sometimes stem-like) and sepals 4-6 mm, glabrous (vs. 7-9 mm, puberulous). Our morphology analysis confirms that the new species belongs to V.sect.Plagiostigmasubsect.Diffusae. Photographs, an illustration, a distribution map and comparisons with the most similar species are also provided.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"253 ","pages":"143-154"},"PeriodicalIF":1.3,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11898058/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143616783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A synopsis of <i>Christiana</i> DC. (Malvaceae, Brownlowioideae), with a new species from the Brazilian Atlantic Forest.","authors":"Thales Silva Coutinho, Rafael G Barbosa-Silva, Laurence J Dorr","doi":"10.3897/phytokeys.253.145350","DOIUrl":"10.3897/phytokeys.253.145350","url":null,"abstract":"<p><p>A taxonomic synopsis is provided for the genus <i>Christiana</i>, with emphasis on the American species. Full synonymies, typifications, comments about distribution, and notes on main diagnostic characteristics, as well as conservation status and phenology, are provided. We describe a new species, <i>C.restingae</i> T.S. Cout., Barb.Silva & Dorr, <b>sp. nov</b>. With this addition, <i>Christiana</i> now comprises six species, with its center of richness in South America, where five species occur. The new species is endemic to Brazil where it is known only from Atlantic Forest and Restinga in the states of Espírito Santo and Rio de Janeiro, and is preliminarily assessed as Critically Endangered. Illustrations, images, a distribution map, SEM images of vegetative and reproductive structures, taxonomic comments, and information about the ecology and conservation of <i>C.restingae</i> are provided. Furthermore, the distribution and introduction of <i>C.africana</i> in the Americas is discussed. A total of eight names of <i>Christiana</i> species or synonyms described in four other genera (<i>Berrya</i>, <i>Carpodiptera</i>, <i>Entelea</i>, and <i>Speirostyla</i>) are lectotypified.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"253 ","pages":"33-56"},"PeriodicalIF":1.3,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11889513/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143586659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"<i>Schnabeliajiuzhaigouensis</i> (Lamiaceae, Ajugoideae), a new species from Sichuan, China.","authors":"Fei Zhao, Peng-Wei Gao, Ting Zhang, Cheng Liu, Chun-Lei Xiang","doi":"10.3897/phytokeys.253.141697","DOIUrl":"10.3897/phytokeys.253.141697","url":null,"abstract":"<p><p><i>Schnabeliajiuzhaigouensis</i> C. Liu, F. Zhao & C.L. Xiang, a new species from north-eastern Sichuan, China, is described, based on both morphological and molecular phylogenetic evidence. Morphologically, the new species is mostly similar to <i>S.terniflora</i>, but can be readily distinguished by its habit, ovate to lanceolate-ovate leaf blades, the presence of 5-8 lateral veins on each side of the mid-rib and distinct characteristics of the floral structure, including oblong upper lip and lateral lobes of the lower lip, with the middle lobe being cuneate. In addition, the nutlets are puberulent and lack reticulate venation. Molecular phylogenetic analyses place the new species at a basal position within the genus <i>Schnabelia</i>. The new species is categorised as Data Deficient (DD) according to the IUCN Red List Categories and Criteria. A key to all species of <i>Schnabelia</i> is also provided.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"253 ","pages":"21-32"},"PeriodicalIF":1.3,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11883466/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143573395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"<i>Persicariazhenaiguoi</i> (Polygonaceae, Persicarieae), an overlooked new species from Dabie Mountains, central China.","authors":"Yi-Ming Wei, Zhen-Hua Zhu, Shu-Qing Lei, Bo Li","doi":"10.3897/phytokeys.253.144408","DOIUrl":"10.3897/phytokeys.253.144408","url":null,"abstract":"<p><p><i>Persicariazhenaiguoi</i> Bo Li, a remarkable new species discovered from the summit of Tiantangzhai Peak of Dabie Mountains in Hubei Province, central China, is described and illustrated. Based on its spicate inflorescences, ciliate ocreae, and the absence of prickles, the species is placed in P.sect.Persicaria. Within this section, <i>P.zhenaiguoi</i> most resembles <i>P.orientalis</i> and <i>P.viscosa</i> in gross morphology, particularly in the presence of densely spreading villus throughout. However, the new species can be easily distinguished from these two similar taxa by its nearly sessile leaves, which are lanceolate in shape with broadly cuneate to rounded bases, membranous ocrea with a small circle of green leaf-like wing, sparse and interrupted inflorescences, glabrous peduncles, greenish tepals, and ovoid achenes with grooved surfaces. Diagnostic characteristics, along with comparative photographs of the three related species, are provided, as well as a detailed morphological description and information on the distribution and habitat of the new species.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"253 ","pages":"11-19"},"PeriodicalIF":1.3,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11880815/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143573407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"<i>Euonymuspushpagiriensis</i> (Celastraceae), a new species from the central Western Ghats of Karnataka, India.","authors":"Navendu V Page, Tejas U Thackeray","doi":"10.3897/phytokeys.253.138418","DOIUrl":"10.3897/phytokeys.253.138418","url":null,"abstract":"<p><p><i>Euonymuspushpagiriensis</i> <b>sp. nov.</b>, an understorey tree species from the montane (Shola) forests of Kodagu District of Karnataka is described and illustrated. The species is morphologically distinct from all other species of <i>Euonymus</i> reported from the Western Ghats and the rest of India, in having sub-sessile, ovate leaves with rounded to sub-cordate leaf base. This species is, so far, known from the Kodagu District of the State of Karnataka.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"253 ","pages":"1-9"},"PeriodicalIF":1.3,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11880816/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143573402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"<i>Orobancheandryalae</i> (Orobanchaceae): a new species from the Canary Islands.","authors":"Chris J Thorogood, Matías Hernández González, Fred J Rumsey, Jorge Alfredo Reyes-Betancort","doi":"10.3897/phytokeys.252.141300","DOIUrl":"https://doi.org/10.3897/phytokeys.252.141300","url":null,"abstract":"<p><p>A new species of <i>Orobanche</i> is described from the Canary Islands. The plant belongs to the complicated Subsection Minores and has a distinct combination of morphological features, ecology, and host specificity. The markedly cernuous corolla, high filament insertion and colouration distinguishes <i>Orobancheandryalae</i> from closely related species with which it has been previously confused, and which do not occur in the Canary Islands, including O.amethysteasubsp.castellana and <i>O.calendulae</i>; these features remain stable in cultivation. <i>Orobancheandryalae</i> appears to be parasitic almost exclusively on <i>Andryala</i> spp., and occurs on thermophilus volcanic substrates in northern Lanzarote, northwest Tenerife and Jandía in Fuerteventura. An updated key to the <i>Orobanche</i> of the Canary Islands is presented, including the new taxon we describe here.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"252 ","pages":"275-285"},"PeriodicalIF":1.3,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11868799/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143543082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}