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Geniostomaimadae (Loganiaceae), a new single-island endemic species from Kaua'i, Hawaiian Islands. Geniostomaimadae (loganaceae)，夏威夷考艾岛单岛特有新种。
IF 1.3 3区 生物学
PhytoKeys Pub Date : 2025-06-10 eCollection Date: 2025-01-01 DOI: 10.3897/phytokeys.257.154236
Kenneth R Wood, David H Lorence, Warren L Wagner, Susan Fawcett
{"title":"<i>Geniostomaimadae</i> (Loganiaceae), a new single-island endemic species from Kaua'i, Hawaiian Islands.","authors":"Kenneth R Wood, David H Lorence, Warren L Wagner, Susan Fawcett","doi":"10.3897/phytokeys.257.154236","DOIUrl":"10.3897/phytokeys.257.154236","url":null,"abstract":"<p><p>A new endemic species of <i>Geniostoma</i> from Kaua'i, Hawaiian Islands, is described and illustrated with notes on its distribution, ecology, conservation status, and relationships to other members of the genus. A modification to the existing key for Hawaiian <i>Geniostoma</i> is provided along with a key to all Kaua'i species. <i>Geniostomaimadae</i> <b>sp. nov.</b>, differs from its Hawaiian congeners by its unique combination of glabrous stems, leaves and stipules, flowers 3-10 in open, paniculate cymes with peduncles up to 75 mm long, corolla salverform, lobes 9-11 mm long, calyx lobes 5-9 mm long, and capsules 2-valved with beak 2-4 mm long. Population estimates range from 800 to 1250 individuals distributed across the central northern and eastern windward ridges, slopes and valleys of Kaua'i. <i>Geniostomaimadae</i> represents a new Vulnerable (VU) single-island endemic species.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"257 ","pages":"191-207"},"PeriodicalIF":1.3,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12177514/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144333738","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}
引用次数: 0
Fragilariformameireana, a new araphid diatom species (Bacillariophyta) producing internal valves from Flanders. Fragilariformameireana，一种产于佛兰德斯产生内瓣的麒麟硅藻新种（硅藻门）。
IF 1.3 3区 生物学
PhytoKeys Pub Date : 2025-06-09 eCollection Date: 2025-01-01 DOI: 10.3897/phytokeys.257.155919
Bart Van de Vijver, David M Williams
{"title":"<i>Fragilariformameireana</i>, a new araphid diatom species (Bacillariophyta) producing internal valves from Flanders.","authors":"Bart Van de Vijver, David M Williams","doi":"10.3897/phytokeys.257.155919","DOIUrl":"10.3897/phytokeys.257.155919","url":null,"abstract":"<p><p>During a biodiversity survey around the historic Flemish town of Damme, a large <i>Fragilariforma</i> taxon was observed in a small pond that could not be identified using the currently available literature. Detailed light and scanning electron microscopy investigations revealed the presence of so-called resting spores within the frustules. Following comparison with similar linear, long-celled <i>Fragilariforma</i> species, the unknown taxon is described as new: <i>Fragilariformameireana</i> <b>sp. nov.</b> Discriminating features of the new species include the long, linear valves with protracted, distinctly rostrate apices, the absence of ribbon-like colonies, the presence of a rimoportula on both apices and the formation of internal resting spores.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"257 ","pages":"167-177"},"PeriodicalIF":1.3,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12171728/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144317632","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}
引用次数: 0
Systematics and floral micromorphology of core Aster and its related groups (Asteraceae, Astereae): Taxonomic significance and phylogenetic insights. 核心紫菀及其近缘群（Asteraceae, Astereae）的花微形态研究：分类意义和系统发育。
IF 1.3 3区 生物学
PhytoKeys Pub Date : 2025-06-09 eCollection Date: 2025-01-01 DOI: 10.3897/phytokeys.257.153925
Xinyu Chen, Tianmeng Qu, Xinyi Zheng, Yanru Zhang, Hui Chen, Bo Li, Liang Dou, Zhixi Fu
{"title":"Systematics and floral micromorphology of core <i>Aster</i> and its related groups (Asteraceae, Astereae): Taxonomic significance and phylogenetic insights.","authors":"Xinyu Chen, Tianmeng Qu, Xinyi Zheng, Yanru Zhang, Hui Chen, Bo Li, Liang Dou, Zhixi Fu","doi":"10.3897/phytokeys.257.153925","DOIUrl":"10.3897/phytokeys.257.153925","url":null,"abstract":"<p><p>Four floral microcharacters were examined within 40 species of core <i>Aster</i> and its related groups in the genus <i>Aster</i> L. (Asteraceae, Astereae). These microcharacters included corolla lobe, style base, endothecium cell wall thickening, and the relative length of the stigmatic line to sterile tip appendage of style branch. Phylogenetic analysis was performed using internal transcribed spacers (ITS), followed by ancestral traits reconstruction based on four microcharacters. The phylogenetic results supported the inclusion of <i>Gymnaster</i>, <i>Heteropappus</i>, <i>Heteroplexis</i>, <i>Kalimeris</i>, and <i>Rhynchospermum</i> within core <i>Aster</i>, as well as the possible segregation of groups B-D into multiple new genera within Astereae. Groups A (9 species) and C (4 species) displayed both equally and unequally lobed corollas. Group D (5 species) exclusively exhibited equally lobed corollas. Groups A (26 species), B (1 species), and D (5 species) included both types of swollen and unswollen style bases. Group C (3 species) displayed only unswollen style bases. Additionally, the endothecium cell wall thickenings and relative length of the stigmatic line to the sterile appendage were both highly variable among groups A-D. Given the complex variation of these floral microcharacters, the results of floral micromorphology and ancestral trait reconstruction indicated that the taxonomic significance of floral micromorphology within core <i>Aster</i> and its related groups is limited. However, specific micromorphological traits (e.g., unequally lobed corolla, radial thickening, and longer relative length) may be still useful for diagnosing particular species or groups. Therefore, floral micromorphology should be integrated with other types of evidence for more accurate infrageneric classification of <i>Aster</i>.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"257 ","pages":"135-166"},"PeriodicalIF":1.3,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12171730/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144317633","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}
引用次数: 0
Primulinaaureipurpurea (Gesneriaceae), a new species from Guangxi Zhuang Autonomous Region, China. Primulinaaureipurpurea（苦苣苔科），广西一新种。
IF 1.3 3区 生物学
PhytoKeys Pub Date : 2025-06-06 eCollection Date: 2025-01-01 DOI: 10.3897/phytokeys.257.155007
Bi-Dan Lai, Yi-Qin Huang, Mei-Juan Shi, Zheng-Yu Deng, Fang Wen
{"title":"<i>Primulinaaureipurpurea</i> (Gesneriaceae), a new species from Guangxi Zhuang Autonomous Region, China.","authors":"Bi-Dan Lai, Yi-Qin Huang, Mei-Juan Shi, Zheng-Yu Deng, Fang Wen","doi":"10.3897/phytokeys.257.155007","DOIUrl":"10.3897/phytokeys.257.155007","url":null,"abstract":"<p><p><i>Primulinaaureipurpurea</i>, endemic to the limestone area in Dahua County, Guangxi Zhuang Autonomous Region, China, is described and illustrated here. This species is distinguished from <i>P.albicalyx</i> by leaves sessile or with indistinct short petioles (<i>vs.</i> distinctly petiolate, 21-42 mm long in <i>P.albicalyx</i>, the following comparisons are in the same order) and blades oblanceolate, narrowly obovate to obovate (<i>vs.</i> ovate to broadly ovate); bracts smaller, lanceolate (3-4× ca. 1 mm) (<i>vs.</i> ovate to narrowly ovate, 18-25 × 9-14 mm); filaments glabrous and ca. 1.5 mm long (<i>vs.</i> sparely glandular pubescent and 2-2.5 mm long) and pistil sparsely eglandular-puberulent (<i>vs.</i> densely glandular-pubescent). According to the IUCN Red List criteria, the currently known population of this species is provisionally assessed as \"Vulnerable, VU D2.\"</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"257 ","pages":"125-133"},"PeriodicalIF":1.3,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12166382/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144302634","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}
引用次数: 0
Systematics, natural history, and conservation of Erica (Ericaceae). Systematics，自然历史，和保护的埃里卡（埃里科）。
IF 1.3 3区 生物学
PhytoKeys Pub Date : 2025-06-06 eCollection Date: 2025-01-01 DOI: 10.3897/phytokeys.257.159429
Michael D Pirie, Anina Coetzee, Jaime Fagúndez, Félix Forest, Seth Musker, E Charles Nelson, Timotheüs van der Niet, Fernando Ojeda
{"title":"Systematics, natural history, and conservation of <i>Erica</i> (Ericaceae).","authors":"Michael D Pirie, Anina Coetzee, Jaime Fagúndez, Félix Forest, Seth Musker, E Charles Nelson, Timotheüs van der Niet, Fernando Ojeda","doi":"10.3897/phytokeys.257.159429","DOIUrl":"10.3897/phytokeys.257.159429","url":null,"abstract":"<p><p>Worldwide, many tens of thousands of plant species are threatened with extinction in the wild. Those that are naturally rare or have narrow distributions are particularly vulnerable. The flowering plant genus <i>Erica</i> is a prime example, its numerous species presenting additional challenges associated with conserving large, complex, plant groups. This topical collection of papers represents a substantial body of research on inter-dependent themes in nomenclature, taxonomy, phylogeny, ecology, and conservation of <i>Erica</i> species. It will serve as a lasting resource and reference, helping us to better understand, describe, and name species diversity and improving our knowledge of the complexity of ecological interactions in the wild. These advances will aid and champion conservation of natural habitats and support targeted efforts to secure the most critically endangered species in seed banks and botanic gardens.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"257 ","pages":"119-124"},"PeriodicalIF":1.3,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12166388/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144302635","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}
引用次数: 0
Rubussemiplenus (Rosaceae), a new species with naturally occurring semi-double flowers from Hunan, China. Rubussemiplenus（蔷薇科），一新种，开半重瓣花，产于中国湖南。
IF 1.3 3区 生物学
PhytoKeys Pub Date : 2025-06-04 eCollection Date: 2025-01-01 DOI: 10.3897/phytokeys.257.150519
Ting-Ting Wang, Ming-Hong Li, Dai-Yong Kuang, Jiang-Lin Xia, Qiu-Ping Wang, Huan-Chong Wang
{"title":"<i>Rubussemiplenus</i> (Rosaceae), a new species with naturally occurring semi-double flowers from Hunan, China.","authors":"Ting-Ting Wang, Ming-Hong Li, Dai-Yong Kuang, Jiang-Lin Xia, Qiu-Ping Wang, Huan-Chong Wang","doi":"10.3897/phytokeys.257.150519","DOIUrl":"10.3897/phytokeys.257.150519","url":null,"abstract":"<p><p>The semi-double (<i>semiplenus</i>) floral trait is highly valued in the field of horticulture, yet it remains exceptionally rare in wild plants. <i>Rubussemiplenus</i>, a new species with naturally occurring semi-double flowers, is described and illustrated. This new species was discovered in the Nanyue Hengshan National Nature Reserve, Hunan Province, China. It is distinguished by its herbaceous to dwarf subshrub habit, simple suborbicular leaves (0.7-2.5 × 0.7-2.5 cm), and semi-double flowers with dicyclic petals (10-12). Molecular phylogenetic analyses based on ITS and <i>rbc</i>L + <i>mat</i>K sequences consistently confirmed that <i>R.semiplenus</i> belongs to Sect. Rosaefolii as defined by Focke and is closed to <i>R.hirsutus</i>.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"257 ","pages":"79-93"},"PeriodicalIF":1.3,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12159663/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144286052","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}
引用次数: 0
An integrative approach to alpha taxonomy in Erica L. (Ericaceae) with three new species from the Western Cape, South Africa. An南非西开普省Erica L. （Ericaceae）三新种α分类的综合研究。
IF 1.3 3区 生物学
PhytoKeys Pub Date : 2025-06-04 eCollection Date: 2025-01-01 DOI: 10.3897/phytokeys.257.139457
Rendert D Hoekstra, Seth D Musker, Michael D Pirie, Jan H J Vlok
{"title":"An integrative approach to alpha taxonomy in <i>Erica</i> L. (Ericaceae) with three new species from the Western Cape, South Africa.","authors":"Rendert D Hoekstra, Seth D Musker, Michael D Pirie, Jan H J Vlok","doi":"10.3897/phytokeys.257.139457","DOIUrl":"10.3897/phytokeys.257.139457","url":null,"abstract":"<p><p>The megagenus <i>Erica</i> L. (Ericaceae) comprises 851 species across its global distribution, with an extraordinary focus of diversity in the Cape Floristic Region (CFR) of South Africa where almost 700 species are endemic. The genus is remarkable for both its morphological diversity and the large number of species and subspecific taxa occurring in small populations, often in specialised habitats, putting them at high risk of extinction. Despite significant taxonomic work over the past century, part of this diversity remains undescribed. The sheer size of the genus, its morphological, ecological and geographical variability, and the absence of a modern, consolidated revision make alpha taxonomy challenging. By combining traditional taxonomic methods, standard DNA sequencing methods building on openly available data matrices, and an openly available specialised taxonomic tool for the genus, we present an integrative, reproducible approach to alpha taxonomy in <i>Erica</i>. This approach provided support for the recognition of three new species from the Western Cape in South Africa and aided in ruling out two further putative new species, confirming one as a natural hybrid and the other as a morphological variation within an existing species. We describe the three new species <i>Ericaarida</i> R.D.Hoekstra, <i>Ericahessequae</i> R.D.Hoekstra and <i>Ericainopina</i> J.H.J.Vlok.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"257 ","pages":"95-117"},"PeriodicalIF":1.3,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12159662/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144286054","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}
引用次数: 0
Synopsis of the genus Elymus (Poaceae) in Uzbekistan (Middle Asia) with a description of Elymusuzbekistanicus a new species from Turkestan Mts. 乌兹别克斯坦（中亚）elyymus属（禾科）的记述及土耳其斯坦山elymusuzbekstanicus（一新种）的描述。
IF 1.3 3区 生物学
PhytoKeys Pub Date : 2025-06-03 eCollection Date: 2025-01-01 DOI: 10.3897/phytokeys.257.142950
Kumush B Alieva, Yilong Peng, Adilet Usupbaev, Komiljon Sh Tojibaev, Ziyoviddin Yusupov, Ibrokhimjon Ergashov, Dilnoza Azimova, Zhilin Jiang
{"title":"Synopsis of the genus <i>Elymus</i> (Poaceae) in Uzbekistan (Middle Asia) with a description of <i>Elymusuzbekistanicus</i> a new species from Turkestan Mts.","authors":"Kumush B Alieva, Yilong Peng, Adilet Usupbaev, Komiljon Sh Tojibaev, Ziyoviddin Yusupov, Ibrokhimjon Ergashov, Dilnoza Azimova, Zhilin Jiang","doi":"10.3897/phytokeys.257.142950","DOIUrl":"10.3897/phytokeys.257.142950","url":null,"abstract":"<p><p>A synopsis of the genus <i>Elymus</i> in Uzbekistan, including a description of the genus and species, a key to species identification, illustrations, geographical distribution, and habitat requirements, are presented in detail. According to molecular analyses, including chloroplast and nuclear DNA data, the species forms a distinct clade with members of sect. Anthosachne. Morphologically, it is distinguished by significantly higher pubescence compared to other related species. As a result of our morphological and molecular evidence, a new species <i>Elymusuzbekistanicus</i> is described from the Turkestan Mts (West Pamir-Alay). It differs from the closely related <i>E.praeruptus</i> Tzvelev in that the upper surface of the leaf blades is densely covered with short hairs along rather prominent ribs. The axis segments of rather loose spikes are usually smooth or with scattered short spines along the ribs.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"257 ","pages":"9-50"},"PeriodicalIF":1.3,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12152488/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144286055","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}
引用次数: 0
Tarennapendula (Rubiaceae), a new species from Guangxi, China. Tarennapendula（茜草科），广西一新种。
IF 1.3 3区 生物学
PhytoKeys Pub Date : 2025-06-03 eCollection Date: 2025-01-01 DOI: 10.3897/phytokeys.257.148816
Yong-Hua Qin, Rainer W Bussmann, Zhi-Rong Liu, Man Li, Chang-Ying Xia, Wang-Hui Wu, Sheng-Xiang Yu
{"title":"<i>Tarennapendula</i> (Rubiaceae), a new species from Guangxi, China.","authors":"Yong-Hua Qin, Rainer W Bussmann, Zhi-Rong Liu, Man Li, Chang-Ying Xia, Wang-Hui Wu, Sheng-Xiang Yu","doi":"10.3897/phytokeys.257.148816","DOIUrl":"10.3897/phytokeys.257.148816","url":null,"abstract":"<p><p>The species <i>Tarennapendula</i> (Rubiaceae), a small shrub, is newly described and illustrated from southwestern Guangxi Autonomous Region, China. This species is similar to <i>Tarennatsangii</i> but is readily distinguished by its asymmetrical leaves, larger vegetative leaves than inflorescence leaves, adaxially pilosulous blades, pendulous inflorescences, longer pedicels (15-35 mm vs. 4-7 mm in <i>T.tsangii</i>), shorter corolla tubes (1-1.4 cm vs. 1.8-1.9 cm), multiple ovules per locule (vs. two), and sparsely pubescent fruits containing 13-19 seeds (vs. glabrous fruit containing only four seeds).</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"257 ","pages":"1-8"},"PeriodicalIF":1.3,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12152486/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144286053","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}
引用次数: 0
Arundinellamainlingensis (Poaceae), a new species from Xizang, China. Arundinellamainlingensis（禾本科），中国西藏一新种。
IF 1.3 3区 生物学
PhytoKeys Pub Date : 2025-06-03 eCollection Date: 2025-01-01 DOI: 10.3897/phytokeys.257.151771
Yu-Wei Tian, Xie-Yong Zhang, Ping Yan, Wen-Li Chen
{"title":"<i>Arundinellamainlingensis</i> (Poaceae), a new species from Xizang, China.","authors":"Yu-Wei Tian, Xie-Yong Zhang, Ping Yan, Wen-Li Chen","doi":"10.3897/phytokeys.257.151771","DOIUrl":"10.3897/phytokeys.257.151771","url":null,"abstract":"<p><p><i>Arundinellamainlingensis</i> (Poaceae), a new species from Xizang, China is described and illustrated. This new species forms a sister group relationship with <i>A.yunnanensis</i> on the molecular phylogenetic tree, sharing common morphological characteristics such as ligule extremely short, glumes glabrous and 4-5 mm long and lemma with an apical awn. <i>Arundinellamainlingensis</i> differs from <i>A.yunnanensis</i> in having stems with 3 or 4 nodes, clustered basal leaves, densely covered with tubercle-based hairs on the margins and the adaxial surface, less cauline leaves and lower florets that are male or neuter with short anthers about 1.2 mm long. <i>Arundinellamainlingensis</i> is primarily found in south-eastern Xizang, including Nyingchi, Mainling and Bomê, whereas <i>A.yunnanensis</i> is only observed in Gongshan, Yunnan. These differences further reinforce the classification of the two as distinct species.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"257 ","pages":"65-78"},"PeriodicalIF":1.3,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12152490/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144286051","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}
引用次数: 0
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