PhytoKeysPub Date : 2025-04-24eCollection Date: 2025-01-01DOI: 10.3897/phytokeys.255.143020
Zhengyang Niu, Zhuoyu Cai, Jun Yin, Yihua Tong, Nianhe Xia
{"title":"Morphological and molecular evidence suggests that <i>Indosasagigantea</i> and <i>Acidosasaglauca</i> (Poaceae, Bambusoideae, Arundinarieae) are conspecific.","authors":"Zhengyang Niu, Zhuoyu Cai, Jun Yin, Yihua Tong, Nianhe Xia","doi":"10.3897/phytokeys.255.143020","DOIUrl":"https://doi.org/10.3897/phytokeys.255.143020","url":null,"abstract":"<p><p><i>Indosasagigantea</i> is a bamboo with great economical value, but its generic designation has been controversial for a long time. This study aims to ascertain whether <i>I.gigantea</i> belongs to <i>Indosasa</i> or <i>Acidosasa</i>, based on morphological and molecular evidence from both plastome and single-copy nuclear orthologous genes. The results of phylogenetic analyses, based on plastid genomes and nuclear gene sequences, both strongly supported that <i>I.gigantea</i> is distantly related to other members of <i>Indosasa</i>, but clustered with <i>Acidosasaglauca</i>, the type species of <i>Acidosasa</i>. Further morphological studies demonstrated that <i>I.gigantea</i> is conspecific with <i>A.glauca</i>. Thus, <i>I.gigantea</i> was proposed as a synonym of <i>A.glauca</i>. Colour plates as well as a detailed description of this species are also provided.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"255 ","pages":"171-187"},"PeriodicalIF":1.3,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12046344/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144018633","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>Yushaniarubrovaginata</i> (Poaceae, Bambusoideae), a new combination for Sasarubrovaginata.","authors":"Xing Li, Jing-Bo Ni, Mian Liang, Yi-Hua Tong, Nian-He Xia","doi":"10.3897/phytokeys.255.147252","DOIUrl":"https://doi.org/10.3897/phytokeys.255.147252","url":null,"abstract":"<p><p><i>Sasarubrovaginata</i> is transferred to <i>Yushania</i> based on morphological and molecular evidence. The lectotype for <i>S.rubrovaginata</i> is designated. Besides, a revised description of this species and a key to the four <i>Yushania</i> species distributed in Cenwanlaoshan Mountain are also provided.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"255 ","pages":"189-201"},"PeriodicalIF":1.3,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12046343/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144008531","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}
PhytoKeysPub Date : 2025-04-24eCollection Date: 2025-01-01DOI: 10.3897/phytokeys.255.142428
Qi-Liang Gan, Wen-Bin Xu, Xin-Wei Li
{"title":"<i>Prunuszhuxiensis</i> (Rosaceae), a new species from Hubei, China.","authors":"Qi-Liang Gan, Wen-Bin Xu, Xin-Wei Li","doi":"10.3897/phytokeys.255.142428","DOIUrl":"https://doi.org/10.3897/phytokeys.255.142428","url":null,"abstract":"<p><p>In the present paper, we describe a new species, <i>Prunuszhuxiensis</i> (P.subg.Cerasus), from Hubei, China, based on long-term field observations. This species closely resembles <i>P.serrulata</i> in having corymbose-racemose or subumbellate inflorescences, hairy petiole, pedicel, involucral bracts and black drupes. However, <i>P.zhuxiensis</i> differs distinctly from <i>P.serrulata</i> by its sweet edible drupes (versus bitter, inedible drupes in <i>P.serrulata</i>), stipules 4-lobed at the base (versus linear stipules in <i>P.serrulata</i>), smaller bracts, shorter pedicels and styles pilose at the base (versus glabrous styles in <i>P.serrulata</i>). Furthermore, molecular phylogenetic analyses indicate that <i>P.zhuxiensis</i> and <i>P.serrulata</i> are placed in separate clades, supporting their distinction.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"255 ","pages":"203-213"},"PeriodicalIF":1.3,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12046342/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144040561","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}
PhytoKeysPub Date : 2025-04-17eCollection Date: 2025-01-01DOI: 10.3897/phytokeys.255.146179
Jia-Lu Li, Yi He, Quan-Ru Liu
{"title":"<i>Cardaminetangutorum</i> O.E.Schulz (Brassicaceae), a new synonym of <i>Cardaminemacrophylla</i> Willd.","authors":"Jia-Lu Li, Yi He, Quan-Ru Liu","doi":"10.3897/phytokeys.255.146179","DOIUrl":"https://doi.org/10.3897/phytokeys.255.146179","url":null,"abstract":"<p><p><i>Cardaminemacrophylla</i> Willd. and <i>Cardaminetangutorum</i> O.E.Schulz are both widely distributed plants of the genus <i>Cardamine</i> L. in East Asia, and they are regarded as the same species in <i>Flora of China</i>. In this study, through literature and specimen research, morphological measurement and phylogenetic analyses, the results show that the traditional distinguishing characters cannot distinguish the two species. <i>Cardaminetangutorum</i> O.E.Schulz inserted into the branch of <i>Cardaminemacrophylla</i> Willd. in the molecular phylogenetic tree. Therefore, based on the results of this study, <i>Cardaminetangutorum</i> O.E.Schulz was treated as the synonym of <i>Cardaminemacrophylla</i> Willd.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"255 ","pages":"123-141"},"PeriodicalIF":1.3,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12022763/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144025066","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}
PhytoKeysPub Date : 2025-04-17eCollection Date: 2025-01-01DOI: 10.3897/phytokeys.255.141395
Cheng-Wei Chen, Van Truong Do, Quang Cuong Truong, Viet Dai Dang, Hong Truong Luu, Yi-Shan Chao, Yao-Moan Huang, Kuo-Fang Chung
{"title":"Studies of Vietnamese Pteridophyte Flora 3.","authors":"Cheng-Wei Chen, Van Truong Do, Quang Cuong Truong, Viet Dai Dang, Hong Truong Luu, Yi-Shan Chao, Yao-Moan Huang, Kuo-Fang Chung","doi":"10.3897/phytokeys.255.141395","DOIUrl":"https://doi.org/10.3897/phytokeys.255.141395","url":null,"abstract":"<p><p>This is the third paper in a series dedicated to updating the knowledge of the Vietnamese pteridophyte flora. Based on recent collections, we first reported three new national records of ferns: <i>Haplopterisyakushimensis</i>, <i>Lindsaeakohkongensis</i>, and <i>Pterispseudowulaiensis</i>. Secondly, we conducted phylogenetic analyses to investigate the placements of <i>Lindsaeakohkongensis</i> and <i>Leptochiluspoilanei</i>, each based on three plastid DNA markers. Our results revealed that <i>Lindsaeakohkongensis</i> is sister to <i>L.ensifolia</i>, while <i>Leptochiluspoilanei</i> is embedded within <i>L.cantoniensis</i>. We discussed these results in the context of systematics. Lastly, we reported chromosome numbers for 20 fern species in Vietnam. For seven of these species, including <i>Gymnosphaerasalletii</i>, <i>Lepisorusspicatus</i>, <i>Leptochiluspoilanei</i>, <i>Pteridryscostularis</i>, <i>Pterislatipinna</i>, <i>Pyrrosiaeberhardtii</i>, and <i>Tectariasetulosa</i>, these counts were recorded for the first time. Additionally, three new cytotypes were identified for <i>Diplaziumdoederleinii</i>, <i>Pterisesquirolii</i>, and <i>Tectariaharlandii</i>. This study underscores the need for more diverse data, including DNA sequences, chromosome numbers, and reproductive modes, to be collected and integrated into systematic studies and taxonomic treatments to enhance our understanding of Vietnam's pteridophyte flora.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"255 ","pages":"143-169"},"PeriodicalIF":1.3,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12022764/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144006152","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}
PhytoKeysPub Date : 2025-04-17eCollection Date: 2025-01-01DOI: 10.3897/phytokeys.255.145664
Yong Fang, Pan Yu, Qing-Min You, John Patrick Kociolek, Yue Cao, Quan-Xi Wang, Zhi-Ping Qian
{"title":"<i>Caloneisnanyiensis</i> sp. nov. (Bacillariophyta) from Nanyi Lake of Anhui Province, China.","authors":"Yong Fang, Pan Yu, Qing-Min You, John Patrick Kociolek, Yue Cao, Quan-Xi Wang, Zhi-Ping Qian","doi":"10.3897/phytokeys.255.145664","DOIUrl":"https://doi.org/10.3897/phytokeys.255.145664","url":null,"abstract":"<p><p>A new species, <i>Caloneisnanyiensis</i> <b>sp. nov.</b>, is described from Nanyi Lake, the largest lake in southern Anhui Province, China. Observations were made using a light and scanning electron microscope documenting the size, shape and ultrastructure of the new species. <i>Caloneisnanyiensis</i> <b>sp. nov.</b> has rhombic valves with acutely rounded apices. The raphe is narrow and arched. An internal axial plate covers the alveoli, leaving small marginal openings bordered by costa, thickened and raised from the valve face. The striae are slightly radiate to parallel in the central area, becoming radiate towards the apices. By comparing the new species with similar <i>Caloneis</i> species, <i>C.nanyiensis</i> <b>sp. nov.</b> was confirmed to be sufficiently different with respect to valve size and striae density to be recognised as new to science. The new species lives in freshwater habitats and epiphytic on <i>Cladophora</i>. The discovery enhances our knowledge of the diversity of freshwater diatoms in China.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"255 ","pages":"113-122"},"PeriodicalIF":1.3,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12022762/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144042072","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>Sinocrassulaobliquifolia</i> (Crassulaceae), a new species from China.","authors":"Rong-Juan Li, Jing Zhao, Shao-Li Fang, Chuan-Jie Huang, Miao Luo, Zhao-Rong He, Xin-Mao Zhou, Jia-Guan Wang","doi":"10.3897/phytokeys.255.142079","DOIUrl":"https://doi.org/10.3897/phytokeys.255.142079","url":null,"abstract":"<p><p>Based on a comprehensive morphological and molecular data analysis, we have confirmed and described a new species within the genus <i>Sinocrassula</i>, which is distributed in Sichuan Province, China. Morphologically, the new species resembles <i>Sinocrassuladiversifolia</i> and <i>S.indica</i>, but it is distinctly different from them in its asymmetrical leaves, leaf apex with glands, triangular petals that are white at the base and adorned with dense purple-red stripes and spots on the surfaces upward, and rectangular nectar scales. A phylogenetic analysis utilizing four plastid markers and one nuclear marker supports the conclusion that the new species is sister to <i>S.ganluoensis</i>.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"255 ","pages":"103-112"},"PeriodicalIF":1.3,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12012546/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144041890","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}
PhytoKeysPub Date : 2025-04-10eCollection Date: 2025-01-01DOI: 10.3897/phytokeys.255.146942
Mattia Pallanza, Simone Orsenigo, Nicola Maria Giuseppe Ardenghi, Liliana Bernardo, Petr Šmarda, Petra Šarhanová, Graziano Rossi, Bruno Foggi
{"title":"<i>Festucasilana</i> (Poaceae), a new species from the Sila plateau in Italy.","authors":"Mattia Pallanza, Simone Orsenigo, Nicola Maria Giuseppe Ardenghi, Liliana Bernardo, Petr Šmarda, Petra Šarhanová, Graziano Rossi, Bruno Foggi","doi":"10.3897/phytokeys.255.146942","DOIUrl":"https://doi.org/10.3897/phytokeys.255.146942","url":null,"abstract":"<p><p>A new hexaploid species of fine-leaved fescue from Festucasect.Festuca (<i>Festucasilana</i> Ardenghi, Pallanza & Foggi, <b>sp. nov.</b>) endemic to the Sila plateau is described. The new taxon shows morphological affinities with species of the <i>F.marginata</i> group from which it can be distinguished by higher ploidy, ecology, and leaf cross section anatomy. ddRADseq data suggests <i>F.silana</i> could be a local hexaploid descendant/derivate of the widespread diploid <i>F.marginata</i>. Its distribution is restricted to several localities in the Sila highlands of the Southern Apennines, Italy.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"255 ","pages":"85-102"},"PeriodicalIF":1.3,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12006820/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144037619","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}
PhytoKeysPub Date : 2025-04-10eCollection Date: 2025-01-01DOI: 10.3897/phytokeys.255.143043
Dang Hung Cuong, Nguyen Thi Kim Thanh, Nguyen Huu Hiep, Dang Ngoc Huyen, Thanh Truong Hoang, Shuichiro Tagane
{"title":"<i>Syzygiumtriflorum</i> (Myrtaceae), a new species from Vietnam.","authors":"Dang Hung Cuong, Nguyen Thi Kim Thanh, Nguyen Huu Hiep, Dang Ngoc Huyen, Thanh Truong Hoang, Shuichiro Tagane","doi":"10.3897/phytokeys.255.143043","DOIUrl":"https://doi.org/10.3897/phytokeys.255.143043","url":null,"abstract":"<p><p><i>Syzygiumtriflorum</i> T.T.Hoang, Kim Thanh, S.Tagane & D.H.Cuong, <b>sp. nov.</b>, from Kon Chu Rang Nature Reserve, Vietnam, is described and illustrated. The new species is distinguished from related species, <i>Syzygiumskiophilum</i>, by its having 4-angled and reddish-grey twigs, oblong leaves with an attenuate apex, less secondary veins of 26-30 pairs, exclusively axillary inflorescences, lanceolate-ovate bracts, sessile flowers, obconical hypanthium (slightly pyriform in flower buds) and more stamens of 18-28. The flowers and fruits were observed in the rainy season, July 2024. This new species grows under a mixed broad-leaved and coniferous forest dominated by <i>Dacrydiumelatum</i> and <i>Dacrycarpusimbricatus</i>.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"255 ","pages":"75-83"},"PeriodicalIF":1.3,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12006818/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144026644","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>Lagerstroemiayangchunensis</i> (Lythraceae), a new species from Guangdong, China.","authors":"Bao-Huan Wu, Xiu-Ting Liu, Zi-Yu Bao, Xiao-Yan Ma, Ying Chen, Guo-Di Chen, Xing Hu, Guo-Feng Liu, Se-Ping Dai","doi":"10.3897/phytokeys.255.138826","DOIUrl":"https://doi.org/10.3897/phytokeys.255.138826","url":null,"abstract":"<p><p>A new species from southern China, <i>Lagerstroemiayangchunensis</i> B.H.Wu & G.D.Chen, <b>sp. nov.</b>, is described in the present paper. This species is morphologically similar to <i>L.duperreana</i> Pierre ex Gagnep., but can be distinguished by its coarse bark with vertical fissures, calyx lobes glabrous inside, and flowers with shorter pseudopedicels and petals with longer claws. Detailed morphological characteristics, habitat information, and comparisons with similar species are provided.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"255 ","pages":"35-40"},"PeriodicalIF":1.3,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12000815/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143977768","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}