PhytoKeys最新文献

{"title":"Taxonomic notes on the genus <i>Itea</i> (Iteaceae).","authors":"Zhu-Qiu Song, Bu-Yun Zhang","doi":"10.3897/phytokeys.239.117851","DOIUrl":"10.3897/phytokeys.239.117851","url":null,"abstract":"<p><p>The genus <i>Itea</i> (Iteaceae) is recognised as a genus with about 21 extant species of shrubs and trees. Within the genus, most species have oblong to elliptical leaves. The lanceolate and obolanceolate leaves are only found in three species, vix <i>Iteaamoena</i> Chun, <i>Iteariparia</i> Collett & Hemsl. and <i>Iteatenuinervia</i> S. Y. Liu. The results of our examination of literature, specimens and living plants in the wild have shown that <i>Iteatenuinervia</i> is conspecific with <i>Iteariparia</i> and is here reduced to a synonym of the latter species. The morphological description, colour pictures, voucher specimens, distribution map of <i>Iteariparia</i> and its related <i>Iteaamoena</i>, together with the morphological comparisons between the two species, are provided in this study.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10951616/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140175895","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":"Taxonomic revision of <i>Camellia</i> (Theaceae) in Thailand.","authors":"Dongwei Zhao","doi":"10.3897/phytokeys.239.113878","DOIUrl":"10.3897/phytokeys.239.113878","url":null,"abstract":"<p><p>Natural plants of <i>Camellia</i> (Theaceae) in Thailand are taxonomically revised with a key, a distribution map, descriptions, specimens examined, and figures of living plants and/or dry specimens. Nine taxa comprising seven species and two varieties are recognized, including <i>C.caudata</i>, <i>C.connata</i>, <i>C.furfuracea</i>, <i>C.kissi</i>, C.kissivar.confusa, <i>C.laotica</i>, C.sinensisvar.assamica, <i>C.suddeeana</i>, and <i>C.taliensis</i>. <i>Camelliacaudata</i> and <i>C.laotica</i> are new records to Thailand, and <i>C.connata</i> and <i>C.suddeeana</i> are endemic to the country. Formerly recorded <i>C.pleurocarpa</i> and <i>C.tenii</i> are excluded from Thai flora because of misidentification, and <i>C.oleifera</i> and <i>C.sinensis</i> are merely cultivated in the country. Morphological descriptions of <i>C.connata</i> and <i>C.laotica</i> are improved based on additional collections examined.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10933584/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140120291","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>Chimonobambusafarcta</i> (Poaceae, Bambusoideae), a new species from western Guangxi, China with taxonomic notes on <i>C.pubescens</i> and <i>C.luzhiensis</i>.","authors":"Guang-Hui Lai, Jin-Jun Yue","doi":"10.3897/phytokeys.239.116592","DOIUrl":"10.3897/phytokeys.239.116592","url":null,"abstract":"<p><p><i>Chimonobambusafarcta</i>, a new species of temperate woody bamboos from western Guangxi, China is described and illustrated. The new species is similar to <i>C.pubescens</i> in the solid internodes of culms, but differs in having taller culm to 7 m with longer verrucose internodes to 23.5 cm and intranodes to 4 mm, intranode usually with a ring of 7-9 root thorns below mid-culm, abaxially brown or brown-purple verrucose-setose culm leaf sheaths with indistinct transverse veins, conspicuously developed culm leaf blades to 3.2 cm long, longer foliage leaf sheaths to 5.2 cm, larger and broader foliage leaf blades to 22 × 1.4 cm. It also somewhat resembles <i>C.convoluta</i>, but can be easily distinguished by having solid internodes and longer intranode 2-4 mm, very prominent nodes with supranodal ridge obviously more elevated than sheath scar, usually persistent and sometimes brownish striate culm leaf sheaths, longer culm leaf blades to 3.2 cm, and abaxially glabrous foliage leaf sheaths. Based on the morphological characteristics, this new species is assigned to C.sect.Chimonobambusa. The character description of <i>C.pubescens</i> are revised for its culm to 2.1 m tall, 1.1 cm in diameter and glabrous foliage leaf blades. The systematic position of <i>C.luzhiensis</i> is discussed, and this species is proposed as a member of C.sect.Chimonobambusa.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10946087/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140158707","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":"Checklist of the genus Ridsdalea (Rubiaceae, Gardenieae) in Vietnam with description of the new species R.backanensis","authors":"Khoa Van Phung, Leonid V. Averyanov, T. Maisak, L. I. Krupkina, Hai Xuan Cao, C. H. Nguyen","doi":"10.3897/phytokeys.239.113017","DOIUrl":"https://doi.org/10.3897/phytokeys.239.113017","url":null,"abstract":"Abstract The paper provides an identification key and an annotated list of all six species of the genus Ridsdalea J.T.Pereira & K.M.Wong (Rubiaceae, Gardenieae) recorded in the flora of Vietnam, along with data on their valid names, synonyms, types, and distribution. A new species, R.backanensis, discovered in the limestone area of Bac Kan Province (northern Vietnam), is described and illustrated. Detailed data on its characters, ecology, distribution, phenology, preliminary IUCN conservation status, and taxonomical notes are given. The newly discovered species is potentially interesting for cultivation as an ornamental tree that may be effectively used in garden and urban green architecture.","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140091030","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}

{"title":"An account of the genus <i>Cistanche</i> (Orobanchaceae) in Iraq and taxonomic considerations in the Middle East.","authors":"Majed Aldughayman, Chris J Thorogood, Abdulridha A A Al-Mayah, Julie A Hawkins","doi":"10.3897/phytokeys.238.116470","DOIUrl":"10.3897/phytokeys.238.116470","url":null,"abstract":"<p><p>Species limits in the genus <i>Cistanche</i> are poorly understood, despite the plants' long history of use in traditional herbal medicine and food across their range. Here we present a taxonomic account for the genus <i>Cistanche</i> in Iraq, where several taxa have been reported, most of them doubtfully. Using herbarium specimens, images of living material, and taxonomic literature, we found evidence of only one species occurring with certainty in Iraq: <i>Cistanchetubulosa</i>. We found no evidence for the occurrence of other <i>Cistanche</i> species in Iraq, including a putative new entity reported for the region. Our work highlights inconsistencies in the literature, and underscores the importance of examining multiple stable characters for delimiting species in the genus <i>Cistanche</i>.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10918587/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140060177","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":"Revised checklist of endemic vascular plants of Kazakhstan.","authors":"Serik A Kubentayev, Daniyar T Alibekov, Yuri V Perezhogin, Georgy A Lazkov, Andrey N Kupriyanov, Alexander L Ebel, Klara S Izbastina, Olga V Borodulina, Balsulu B Kubentayeva","doi":"10.3897/phytokeys.238.114475","DOIUrl":"10.3897/phytokeys.238.114475","url":null,"abstract":"<p><p>We compiled a checklist of endemic vascular plants occurring in Kazakhstan, employing an exhaustive examination of literature sources, herbarium collections, databases and field observations. Our study reveals that 451 taxa can be considered endemic to Kazakhstan, constituting 7.97% of the total vascular plant diversity in the country. These endemic taxa, originating from 139 genera and 34 families, predominantly thrive in the southern regions of Kazakhstan, specifically in the mountain ridges of the Kazakh part of the Tian Shan, including Karatau (123 taxa), Dzungarian Alatau (80 taxa) and Trans-Ili and Kungey Alatau (50 taxa). Notably, 107 endemic species are granted legal protection. Detailed information regarding life form, life cycle, conservation status and geographical distribution across floristic regions was meticulously compiled for each endemic taxon. Of the six groups of life forms, herbs include the highest part of endemic taxa (367 taxa), followed by dwarf semishrubs (25 taxa), shrubs (23 taxa), subshrubs (20 taxa), undershrubs (13 taxa) and trees (3 taxa). The observed life cycles are perennials (408 taxa), annuals (33 taxa) and biennials (10 taxa). This paper serves as a fundamental groundwork for prospective investigations aimed at assessing population sizes and hotspots of plant endemism throughout Kazakhstan, crucial for determining conservation status of endemic plants.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10918586/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140060178","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>Ophiorrhizareflexa</i> (Rubiaceae), a new species from a karst region in Guangxi, China.","authors":"Chao Shang, Jun Xue, Yanjie Yang, Xiaowen Liao, Quanru Liu, Lei Wu","doi":"10.3897/phytokeys.238.116767","DOIUrl":"10.3897/phytokeys.238.116767","url":null,"abstract":"<p><p><i>Ophiorrhizareflexa</i>, a new species from Guangxi, China, is described and illustrated in this study. It is morphologically similar to <i>O.alatiflora</i> due to the branched inflorescence, distylous flowers and the tubular-funnelform corolla with five longitudinal wings. The new species can be distinguished from <i>O.alatiflora</i> by its erect inflorescence, its smaller and equal-sized calyx lobes 0.5-0.7 mm long, its corolla tubes winged to the middle and the wings straight and its strongly reflexed corolla lobes at anthesis. <i>Ophiorrhizareflexa</i> is assessed as least concern (LC) according to IUCN Categories and Criteria.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10913009/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140040078","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":"Atlas Florae Europaeae notes, 35. Further critical notes on Cytisussect.Tubocytisus (Fabaceae) in Europe.","authors":"Alexander N Sennikov, Valery N Tikhomirov","doi":"10.3897/phytokeys.238.118032","DOIUrl":"10.3897/phytokeys.238.118032","url":null,"abstract":"<p><p>A few species names in Cytisussect.Tubocytisus are re-assessed and taxonomically evaluated. Diagnostic characters are discussed and the species status of <i>C.absinthioides</i> Janka, <i>C.eriocarpus</i> Boiss., <i>C.frivaldszkyanus</i> Degen, <i>C.jankae</i> Velen. and <i>C.smyrnaeus</i> Boiss. is confirmed. The holotype of <i>Cytisustriflorus</i> Lam. was found to belong to <i>C.hirsutus</i> L. rather than to the <i>C.ratisbonensis</i> group as currently treated. <i>Cytisuslasiosemius</i> Boiss. is not the correct name for <i>C.frivaldszkyanus</i> Degen, but another synonym of <i>C.hirsutus</i>. <i>Cytisuslitwinowii</i> V.I.Krecz., which was known solely from the holotype, is a synonym of <i>C.austriacus</i> L. s.str. <i>Chamaecytisuspseudojankae</i> Pifkó & Barina, reported from a small area shared between Albania, Greece and North Macedonia, is treated as a subalpine variant of <i>C.austriacus</i>. <i>Cytisustmoleus</i> Boiss. is removed from the synonymy of <i>C.eriocarpus</i> and added to the synonymy of <i>C.pygmaeus</i> Willd. Cytisusfalcatussubsp.albanicus Degen & Dörfl. and <i>C.pubescens</i> Gilib. are synonymised with <i>C.hirsutus</i>. <i>Cytisusmicrophyllus</i> Boiss. is moved from <i>C.austriacus</i> s.l. to the synonymy of <i>C.frivaldszkyanus</i>, and <i>C.pindicola</i> (Degen) Halácsy to the synonymy of <i>C.jankae</i>. <i>Chamaecytisuscalcareus</i> (Velen.) Kuzmanov is accepted as <i>Cytisuscalcareus</i> (Velen.) Sennikov & Val.N.Tikhom., <b>comb. nov.</b>, and its distribution is circumscribed. Cytisushirsutusvar.ciliatus (Wahlenb.) Hazsl. and C.polytrichusvar.subglabratus Val.N.Tikhom. & Sennikov, <b>var. nov.</b> are recognised as glabrous variants of the corresponding species. Lectotypes of <i>C.ciliatus</i>, <i>C.hirsutissimus</i> K.Koch, <i>C.jankae</i>, <i>C.lasiosemius</i>, <i>C.pubescens</i>, <i>C.rhodopeus</i> J.Wagner ex Bornm. and <i>C.thirkeanus</i> K.Koch are designated. <i>Cytisuspolytrichus</i> is reported from the Western Caucasus in place of <i>C.wulffii</i> auct.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10907952/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140022416","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":"Atlas Florae Europaeae notes, 33. Taxonomic synopsis of East European species of the <i>Cytisusratisbonensis</i> group (Fabaceae).","authors":"Alexander N Sennikov, Valery N Tikhomirov","doi":"10.3897/phytokeys.238.118031","DOIUrl":"10.3897/phytokeys.238.118031","url":null,"abstract":"<p><p>A group of species of Cytisussect.Tubocytisus with strictly lateral inflorescences, commonly referred to as <i>C.ratisbonensis</i> s.l., is critically revised in Eastern Europe on the basis of morphology and comprehensive treatment of herbarium specimens and observations. Seven species and two presumed hybrids are recognised. Complete accounts are provided for each species, with synonyms, typifications, brief morphological descriptions, data on ecology and distributions, taxonomic and nomenclatural annotations. <i>Cytisuspolonicus</i> is described as new to science, separated from <i>C.ratisbonensis</i> on the basis of morphology and diploid (vs. tetraploid) chromosome count. The lectotype of <i>C.elongatus</i> is superseded and a new lectotype is designated; this name has priority for the species previously known as <i>C.triflorus</i>. Six species names are newly placed to the synonymy: <i>Chamaecytisuspineticola</i> under <i>Cytisusruthenicus</i> s. str., and <i>Cytisusczerniaevii</i>, <i>C.leucotrichus</i>, <i>C.lindemannii</i>, <i>C.ponomarjovii</i> and <i>Chamaecytisuskorabensis</i> under <i>Cytisuselongatus</i>. The presumed hybrid between <i>C.ruthenicus</i> and <i>C.elongatus</i>, which was incorrectly known as <i>C.czerniaevii</i>, is described here as <i>C.semerenkoanus</i>. <i>Cytisuslithuanicus</i>, which has been an obscure name since its original publication, is resurrected for a newly-recognised octoploid species, which is endemic to eastern Poland, western Belarus and north-western Ukraine. The name <i>C.cinereus</i> is re-instated for the species previously known as <i>C.paczoskii</i>, and <i>C.horniflorus</i> is added to its synonymy; its complete distribution area is circumscribed, and its occurrence in Austria, Poland, Romania, Serbia and Slovakia is documented. <i>Cytisuskreczetoviczii</i> and <i>C.elongatus</i> are reported for the first time from Belarus, and the latter species also from Bosnia and Herzegovina, Montenegro and Slovenia. <i>Cytisusborysthenicus</i> and <i>C.elongatus</i> are reported as new to some territories in European Russia. <i>Cytisusratisbonensis</i> s. str. is treated as absent from Eastern Europe. The neglected protologue of <i>C.ruthenicus</i> is discovered, and the nomenclature of all other names is verified and corrected when necessary. The original material of <i>C.borysthenicus</i> is re-discovered. Five further lectotypes and one neotype are designated. Distribution areas are circumscribed on the basis of numerous herbarium collections and documented observations, identified or verified by the authors. Chromosome counts published for nameless taxa from Belarus, Ukraine and Russia are assigned to the species according to their herbarium vouchers: <i>C.borysthenicus</i>, <i>C.kreczetoviczii</i> and <i>C.lithuanicus</i> are octoploid (2n = 100), <i>C.ruthenicus</i> is tetraploid (2n = 50) and octoploid (2n = 100), and <i>C.semerenkoanus</i> and <i>C.elongatus</i> are tetraploid (2n = 50).</p","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10907954/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140022415","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":"Using scanning electron microscopy and molecular data to discover a new species from old herbarium collections: The case of <i>Phlomoideshenryi</i> (Lamiaceae, Lamioideae).","authors":"Yue Zhao, Fei Zhao, Alan J Paton, Jin-Fei Xiao, Ya-Ping Chen, Chun-Lei Xiang","doi":"10.3897/phytokeys.238.117180","DOIUrl":"10.3897/phytokeys.238.117180","url":null,"abstract":"<p><p><i>Phlomoides</i> is one of the largest genera of Lamiaceae with approximately 150-170 species distributed mainly in Eurasia. In this study, we describe and illustrate a new species, <i>P.henryi</i>, which was previously misidentified as <i>P.bracteosa</i>, from Yunnan Province, southwest China. Molecular phylogenetic analyses revealed that <i>P.henryi</i> is found within a clade in which most species lack basal leaves. In this clade, the new species is morphologically distinct from <i>P.rotata</i> in having an obvious stem and, from the rest, by having transparent to white trichomes inside the upper corolla lip. In addition, micro-features of trichomes on the calyx and leaf epidermis can differentiate the new species from other species grouped in the same clade and a key, based on trichome morphology for these species, is provided. The findings demonstrate that the use of scanning electron microscopy can reveal inconspicuous morphological affinities amongst morphologically similar species and play an important role in the taxonomic study of the genus <i>Phlomoides</i>.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2024-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10900110/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139990858","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}