PhytoKeys最新文献

{"title":"<i>Xanthophytumantoanense</i> (Rubiaceae, Ophiorrhizeae), a new species from Vietnam.","authors":"Hieu Cuong Nguyen, Xuan Bach Nguyen-Le, Quoc Dat Nguyen, Tran Quoc Trung Nguyen, Hong Truong Luu","doi":"10.3897/phytokeys.250.137482","DOIUrl":"https://doi.org/10.3897/phytokeys.250.137482","url":null,"abstract":"<p><p><i>Xanthophytumantoanense</i> is described as a new species endemic to Central Vietnam. It is morphologically closest to <i>X.capitatum</i> in having setose hairs on the abaxial leaf surface and a pedunculate head-like inflorescence but differs from the latter by a number of characteristics: shorter stem, 3-lobed stipules, narrowly lanceolate leaf blades with a cuneate-oblique base and 20-22 pairs of secondary veins, 3.5-4.5 cm long peduncle, spatulate calyx lobes, larger corollas with a 5-5.4 mm long tube and 2.4-3 mm long lobes, and an apically hairy style. A detailed description, an illustration, and information on distribution, ecology and phenology, and a provisional assessment of the conservation status of the new species are provided.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"250 ","pages":"215-222"},"PeriodicalIF":1.3,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11704722/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142953191","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>Cryptanthaacrimuricata</i> (Boraginaceae), a distinctive new taxon of series <i>Muricatae</i>.","authors":"Michael G Simpson, Lee M Simpson, James M André","doi":"10.3897/phytokeys.250.138635","DOIUrl":"https://doi.org/10.3897/phytokeys.250.138635","url":null,"abstract":"<p><p>In the process of studying the species <i>Cryptanthamuricata</i> and its varieties, we discovered a unique taxon of the genus that resembles <i>C.muricata</i> but differs in having a mostly densely white-strigose stem vestiture (sometimes with spreading trichomes) and tuberculate to muricate nutlets with often whitish tubercles that are, in comparison with typical <i>C.muricata</i>, larger, with a wider base and more pointed apex, and more densely spaced. We believe this form to be different enough to describe as a new species, <i>Cryptanthaacrimuricata</i>. This new species occurs in southwestern North America: in California and Arizona of the United States and in northern Baja California, Mexico. It occurs in mid- to relatively high elevation mountain regions of mostly desert transition/escarpment in the Transverse and Peninsular Ranges, in the Sonoran and Mohave Deserts, and with some populations scattered in the southern Sierra Nevada. We believe this new species to be closely related to <i>C.clokeyi</i>, <i>C.martirensis</i>, <i>C.muricata</i>, and possibly <i>C.hooveri</i>, of <i>Cryptantha</i> series <i>Muricatae</i>. Detailed molecular phylogenetic are needed to better establish their interrelationships.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"250 ","pages":"193-213"},"PeriodicalIF":1.3,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11704739/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142953107","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 new marine diatom (Bacillariophyceae) species - <i>Halamphoralombokensis</i> sp. nov. and the first observation for <i>H.banzuensis</i> from Kuta Beach Lombok, West Nusa Tenggara, Indonesia.","authors":"Elya Putri Pane, Yenny Risjani, Paul B Hamilton, Cüneyt Nadir Solak, Yunianta Yunianta, Nesil Ertorun, Elif Yılmaz","doi":"10.3897/phytokeys.250.132304","DOIUrl":"https://doi.org/10.3897/phytokeys.250.132304","url":null,"abstract":"<p><p>This paper describes a new species of Halamphora - <i>Halamphoralombokensis</i> <b>sp. nov.</b> and records for the first time <i>Halamphorabanzuensis</i> for the coasts of Indonesia. The study utilized light and scanning electron microscopy to meticulously examine the morphology. These species were found at Kuta Beach on the island of Lombok in Indonesia in highly saline sandy environments. The newly identified species, <i>H.lombokensis</i> <b>sp. nov.</b>, is characterized by its semi-lanceolate to narrowly semi-elliptic shape with a straight ventral and convex dorsal margin. The study contributes to our understanding of marine diatom flora in Indonesia's coastal regions.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"250 ","pages":"165-179"},"PeriodicalIF":1.3,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11699510/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142932608","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>Ctenophorahunanensis</i> sp. nov. (Bacillariophyta) from the Yongle River in Hunan Province, China.","authors":"Dong-Qin Xiang, Rui Yang, Patrick Rioual, Yan Zheng, Bing Liu","doi":"10.3897/phytokeys.250.140576","DOIUrl":"https://doi.org/10.3897/phytokeys.250.140576","url":null,"abstract":"<p><p>A new species, <i>Ctenophorahunanensis</i> Bing Liu & Rioual, <b>sp. nov.</b>, found in the Yongle River, a tributary of the Xiang River (Hunan Province, southern China) is described on the basis of morphological observations made under light and scanning electron microscopes. <i>Ctenophorahunanensis</i> is distinguished from other <i>Ctenophora</i> taxa by a unique combination of characters that includes its lanceolate valve outline with rostrate apices, sternum gradually becoming wider from valve apices to center, and a greater valve width than the other members of the genus. <i>Ctenophorahunanensis</i> inhabits the epilithic community in the headwaters of a freshwater river. Many abnormal valves of <i>C.hunanensis</i> were observed in the samples investigated and the most frequent morphological abnormalities consisted in a lack of symmetry relative to the apical axis caused by a unilateral incising in the middle part of the valve.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"250 ","pages":"181-191"},"PeriodicalIF":1.3,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11699516/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142932606","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":"Revisiting the genus <i>Tulipa</i> (Liliaceae) in Kazakhstan, the country with the richest tulip diversity worldwide.","authors":"Serik A Kubentayev, Shukherdorj Baasanmunkh, Daniyar T Alibekov, Komiljon Sh Tojibaev, Nudkhuu Nyamgerel, Anna A Ivashchenko, Zagarjav Tsegmed, Vladimir G Epiktetov, Gulnara T Sitpayeva, Klara S Izbastina, Zhansaya T Idrissova, Saule K Mukhtubayeva, Nurganym B Abubakirova, Hee-Young Gil, Hyeok Jae Choi","doi":"10.3897/phytokeys.250.136736","DOIUrl":"10.3897/phytokeys.250.136736","url":null,"abstract":"<p><p>The genus <i>Tulipa</i> L., belonging to the Liliaceae family, has significant economic, horticultural, and ecological importance and is culturally revered in various regions worldwide. The total number of <i>Tulipa</i> species, including 90-120 taxa, varies based on different sources. Globally, Kazakhstan has one of the highest diversities of <i>Tulipa</i> species, most of which are threatened. In this study, we update and revise the <i>Tulipa</i> species in Kazakhstan based on field observations and an extensive herbarium specimens' survey. A total of 41 taxa were identified, including 13 species endemic to Kazakhstan, among which seven species have been assessed as threatened globally. Furthermore, we gathered 1,942 occurrence records of 41 <i>Tulipa</i> taxa to analyze spatial arrangement of <i>Tulipa</i> species richness in Kazakhstan. Based on these results, we identified 22 grid cells with a high diversity of tulip species in southern Kazakhstan. We also present taxonomic key for all <i>Tulipa</i> species occurring in Kazakhstan, along with comments on their general distribution, habitat, phenology, distribution map, and conservation status. In addition, a color plate for each species is provided. Overall, our study provides valuable insights into the conservation status, distribution patterns, and biodiversity of <i>Tulipa</i> species in Kazakhstan, laying a foundation for targeted conservation efforts and further research in the region.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"250 ","pages":"95-163"},"PeriodicalIF":1.3,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11686166/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142915499","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":"Africa and Arabia encompass a much greater species diversity in the <i>Achyranthesaspera</i> aggregate (Amaranthaceae, achyranthoid clade): Evidence from morphological and chorological data.","authors":"Alexander P Sukhorukov, Maria Kushunina, Maya V Nilova, Cláudia Baider, Alexander N Sennikov","doi":"10.3897/phytokeys.250.136139","DOIUrl":"10.3897/phytokeys.250.136139","url":null,"abstract":"<p><p><i>Achyranthes</i> in its traditional sense (excluding <i>Achyropsis</i> that phylogenetically falls into <i>Achyranthes</i>) has been considered to contain a restricted (three to four) number of species in Africa and one or two species in the Arabian Peninsula. The morphology of the type species of the genus, <i>A.aspera</i>, has been treated as highly polymorphic, with several varieties recognised by various authors. Not surprisingly, a recent extended phylogeny revealed a non-monophyly of <i>A.aspera</i>. We present a deeper insight into morphological characters of the <i>A.aspera</i> aggregate together with taxonomic, nomenclatural, ecological, and chorological data based on field investigations and herbarium studies. Instead of one polymorphic species, we accept <i>A.aspera</i> s.str., <i>A.abyssinica</i>, <i>A.acuminata</i>, <i>A.annua</i>, <i>A.mauritiana</i>, <i>A.porphyrostachya</i>, <i>A.sicula</i>, and <i>A.seychellensis</i> <b>sp. nov.</b>, all being native to different parts of Africa. In most herbaria, the vast majority of African specimens labelled as <i>A.aspera</i> belong to other species, which are being reinstated here. In addition, two well-recognized species, <i>A.fasciculata</i> and <i>A.talbotii</i> from Tropical East and West Africa, respectively, are also discussed. Moreover, we found that the type of A.asperavar.pubescens as listed in the African and Arabian floras and checklists belongs in fact to an American species <i>A.fruticosa</i>, which is absent in the Old World. In place of the misapplied A.asperavar.pubescens, we accept <i>A.porphyrostachya</i>, a species described from Myanmar, as a correct name for the populations growing in Africa and Arabia. According to our results, at least 10 native species of <i>Achyranthes</i> occur in Africa (or 16 species if <i>Achyropsis</i> is merged with <i>Achyranthes</i>), which is a major diversity center of the genus. Four species are recorded from the Arabian Peninsula (<i>A.abyssinica</i>, <i>A.annua</i>, <i>A.aspera</i> s.str., <i>A.porphyrostachya</i>), and two of them (<i>A.abyssinica</i> and <i>A.annua</i>) reach their easternmost range limit in this region. As a result, the distribution as well as ecological conditions of each species is now clarified or circumscribed for the first time.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"250 ","pages":"21-94"},"PeriodicalIF":1.3,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11681337/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142903438","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":"Dryopteris×subdiffracta (Dryopteridaceae), a new natural hybrid fern from Guangxi, China.","authors":"Hong-Jin Wei, Zheng-Yu Zuo","doi":"10.3897/phytokeys.250.119803","DOIUrl":"10.3897/phytokeys.250.119803","url":null,"abstract":"<p><p>A new natural hybrid fern, Dryopteris×subdiffracta (Dryopteridaceae), is reported from Guangxi, China. Molecular phylogenetic analysis based on DNA sequences from the low-copy nuclear marker <i>Ak1</i> and plastid genome revealed respectively that <i>D.polita</i> and <i>D.diffracta</i> are parents of the new hybrid, with <i>D.polita</i> as the maternal parent. Cytometric analysis of the nuclear DNA content indicated that <i>D.×subdiffracta</i> might be a diploid hybrid. Morphologically, <i>D.×subdiffracta</i> shares a high degree of similarity with <i>D.×subreflexipinna</i> from Taiwan, especially in zigzag-shaped rachis and deflexed pinna stalks. However, <i>D.×subdiffracta</i> is distinguishable in the degree of lamina division and shapes of lamina and pinnulets. A comprehensive taxonomic description accompanied by line drawings are provided.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"250 ","pages":"7-19"},"PeriodicalIF":1.3,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11669906/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142896740","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":"Several new combinations from previous <i>Didymocarpus</i> to <i>Palmatiboea</i> (Gesneriaceae).","authors":"Fang Wen, Qiang Fan","doi":"10.3897/phytokeys.250.138694","DOIUrl":"10.3897/phytokeys.250.138694","url":null,"abstract":"<p><p>The recently published species, <i>Didymocarpuspingyuanensis</i>, is transferred here to the recently re-circumscribed genus, <i>Palmatiboea</i>. Two varieties, recently assigned to <i>Palmatiboea</i>, have been raised to the rank of species. Their Chinese vernacular names are also revised and provided here.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"250 ","pages":"1-6"},"PeriodicalIF":1.3,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11650216/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142855022","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":"Phylogenetic and taxonomic studies of six recently-described <i>Stellaria</i> species (Caryophyllaceae) from China, with an additional new species, <i>Stellarialongipedicellata</i>, from Sichuan.","authors":"Wenqiao Wang, Zhiwei Su, Zhonghui Ma","doi":"10.3897/phytokeys.249.136456","DOIUrl":"10.3897/phytokeys.249.136456","url":null,"abstract":"<p><p>The phylogenetic studies of the tribe Alsineae (Caryophyllaceae) have revealed a clearer boundary between the genus <i>Stellaria</i> and related genera, primarily relying on the morphological characteristics of style 3, stamens 10 and petals deeply bifid. However, the newly-published species in China, which have 5 styles or ten or more lobes per petal, challenge this boundary and necessitate further studies. In this paper, we reviewed six newly-published Chinese species of <i>Stellaria</i>, utilising both molecular phylogenetic evidence from nuclear ribosomal internal transcribed spacer (ITS) and four plastid regions (<i>trnL-F</i>, <i>matK</i>, <i>rbcL</i>, <i>rps16</i>) and morphological evidence. Our results demonstrated that the five new species (<i>Stellariaabaensis</i>, <i>S.multipartita</i>, <i>S.pentastyla</i>, <i>S.procumbens</i> and <i>S.zhuxiensis</i>) were nested within the genus <i>Stellaria</i>, but <i>Stellariamotuoensis</i> was sister to the genus <i>Schizotechium</i>. Herein, we accepted four new <i>Stellaria</i> species and proposed a new combination in <i>Schizotechium</i> and a new synonym in <i>Stellaria</i>. Additionally, we described a new species <i>Stellarialongipedicellata</i> from Sichuan Province, China, which was distinguished from the closely-related species <i>Stellariadecumbens</i> by its glabrous body, linear-lanceolate leaves, long pedicellate flowers, prostrate growth habit and flowers nearly equal to or slightly shorter than sepals. Both molecular and morphological evidence support the treatment of <i>S.longipedicellata</i> as a new species of the genus <i>Stellaria</i>.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"249 ","pages":"287-298"},"PeriodicalIF":1.3,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11638712/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142829761","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":"Two new species of <i>Salvia</i> (Lamiaceae) from the dry forests of Dominican Republic.","authors":"Itzi Fragoso-Martínez, Gerardo A Salazar, Emmanuel Martínez-Ambriz, Martin Reith","doi":"10.3897/phytokeys.249.137556","DOIUrl":"10.3897/phytokeys.249.137556","url":null,"abstract":"<p><p>We describe two new species of <i>Salvia</i> from the Antillean dry forests, belonging to SalviasectionUrbania. These species' names honor two Latin American botanists who have advanced our understanding either of the Dominican flora or the mint family (Lamiaceae). <i>Salviaclaseana</i> is found in the Sierra Martín García. It resembles <i>S.calaminthifolia</i> but differs in having strigose stems, rhombic to trullate leaves with a cuneate, decurrent base, and larger flowers. <i>Salviamartineziana</i> inhabits the Sierra de Bahoruco. It resembles <i>Salviabrachyphylla</i> but differs in having strigose stems with retrorse trichomes and flowers disposed in the axils of the distal leaves. We provide descriptions, photographs, a distribution map and an identification key for the species of SalviasectionUrbania from the Domini-can Republic. Additionally, we sequenced three molecular markers (nrITS, <i>trn</i>L-<i>trn</i>F, and <i>trn</i>H-<i>psb</i>A) for the new taxa and other Dominican and Haitian <i>Salvia</i> species to investigate their phylogenetic relationships.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"249 ","pages":"299-315"},"PeriodicalIF":1.3,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11638711/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142829763","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}