PhytoKeys最新文献

{"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}

{"title":"A new species in <i>Begonia</i> sect. <i>Diploclinium</i> (Begoniaceae) from Guangxi, South China.","authors":"Ping-Ting Hu, Yu-Ni Huang, Meng-Ni Zhang, Bi-Xuan Chen, Shu-Shu Huang, Ren-Kun Li, Wen-Guang Wang, Xin-Xin Feng","doi":"10.3897/phytokeys.249.133724","DOIUrl":"10.3897/phytokeys.249.133724","url":null,"abstract":"<p><p>Although Guangxi represents one of the distribution centres of begonias in China, the sect. Diploclinium (Wright) A. DC is not well documented herein. In this article, we illustrate a new species belonging to this section, <i>Begoniafangchengensis</i> Y.N.Huang, X.X. Feng & R.K.Li, which has been discovered in southern Guangxi. <i>Begoniafangchengensis</i> mostly resembles <i>B.rotundilimba</i> in elliptic leaf blade, palmate veins, dichasial cyme, three styles, axile placentation, and unequally 3-winged capsule. On the other hand, <i>B.fangchengensis</i> is characterized by creeping rhizome, pilose stipule, red and densely pilose petiole, pubescent leaf blade and pilose inflorescence bract, sparsely pilose ovary and the zygomorphic androecium, differing from the erect stem at anthesis, the green and densely villous petiole, the glabrous stipule, leaf blade, inflorescence bract, ovary and actinomorphic androecium in <i>B.rotundilimba</i>. Considering its small population size and narrow distribution, its conservation status is categorized as 'Endangered (D)' according to the IUCN Red List Categories and Criteria.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"249 ","pages":"277-285"},"PeriodicalIF":1.3,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11638708/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142829759","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>Lysimachiapubiflora</i> (Primulaceae), a new species from Hubei, China.","authors":"Han Xu, Song-Zhi Xu, Qi-Liang Gan, Zhen-Yu Li","doi":"10.3897/phytokeys.249.137900","DOIUrl":"10.3897/phytokeys.249.137900","url":null,"abstract":"<p><p>A new species, <i>Lysimachiapubiflora</i>, is described and illustrated from western Hubei Province, China. It is similar to <i>L.jinzhaiensis</i>, but differs in having flagelliform runners on the stems, indumentum on the plant and flowers, and the smaller calyx and anthers. The new species can be distinguished from all other species in the LysimachiaSubgen.LysimachiaSect.Nummularia by its glandular-pubescent corolla.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"249 ","pages":"269-275"},"PeriodicalIF":1.3,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11632357/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142813920","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>Rubustingzhouensis</i> (Rosaceae), a new species from Fujian, China.","authors":"Ming Chen, Gui-Can Lin, Tao Wang, Yi-Xue Zhuang, Yi-Xin Yao, Cheng-Zi Yang, Yuan Qin, Yan-Xiang Lin, Chang An","doi":"10.3897/phytokeys.249.138951","DOIUrl":"10.3897/phytokeys.249.138951","url":null,"abstract":"<p><p><i>Rubustingzhouensis</i> C.An & G.C.Lin, a newly-defined species within the family Rosaceae from Fujian Province, China, is formally described and illustrated here. <i>R.tingzhouensis</i> is morphologically similar to <i>R.swinhoei</i>, but can be distinguished by several key characteristics, such as long, reddish-purple stipitate glands, soft bristles, light yellow short trichomes (vs. shortly grey tomentose at the early stage, glabrescent) and scattered epidermal prickles (vs. few to many curved prickles). Furthermore, the stipules are pinnately deeply laciniate, measuring 1-1.5 cm (vs. ovate-oblong to ovate-lanceolate, 0.5-0.8 cm). Phylogenetic analyses, based on partial sequences and the complete plastome data, provide robust support for a close relationship between <i>R.tingzhouensis</i> and <i>R.swinhoei</i>, while also highlighting distinct genetic differentiation between these two species. The chloroplast genome of <i>R.tingzhouensis</i> is 156,311 bp in length and comprises 132 unique genes, including 86 protein-coding genes, 37 transfer RNAs, eight ribosomal RNAs and one pseudogene.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"249 ","pages":"251-267"},"PeriodicalIF":1.3,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11629084/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142807766","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>Cladopusyangjiangensis</i> (Podostemaceae), a new species from Guangdong, South China, redefining the phylogenetic relationships within <i>Cladopus</i>.","authors":"Miao Zhang, Xiu-Ting Liu, Min Tian, Zhang-Xue Chen, Ying-Lin Huang, Guo-Di Chen, Bing-Hua Chen","doi":"10.3897/phytokeys.249.140342","DOIUrl":"10.3897/phytokeys.249.140342","url":null,"abstract":"<p><p>This paper introduces <i>Cladopusyangjiangensis</i>, a newly identified species that enriches our understanding of the diversity of the Podostemaceae in East Asia. Distinctive in its morphological traits, this species is characterized by the region's longest flowering shoots and exhibits a high number of elongated leaves per cluster, along with relatively slender roots. Phylogenetic analyses using Maximum Likelihood and Bayesian Inference methods on plastome and <i>matK</i> sequences confirm <i>C.yangjiangensis</i> as a distinct species. It forms a clade with <i>C.fukienensis</i>, its closest relative, together branching off from <i>C.austrosinensis</i>. The plastome of <i>C.yangjiangensis</i> is 132,818 bp in length, comprising two inverted repeat regions of 20,881 bp, which are separated by large and small single-copy regions of 78,713 and 12,343 bp, respectively. Genetic analysis reveals the extensive loss of the <i>ycf1</i> and <i>ycf2</i> genes in the chloroplast genome, a trait common to the Podostemaceae, suggesting adaptations to environmental conditions or gene transfers to nuclear or mitochondrial genomes. This study improves the clarity of phylogenetic relationships in previous studies and underscores the importance of continued taxonomic and phylogenetic research.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"249 ","pages":"231-249"},"PeriodicalIF":1.3,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11629083/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142807764","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 Araceae of Sumatra I: A new species of <i>Alocasia</i> from Aceh, Indonesia.","authors":"Ni Putu Sri Asih, Ina Erlinawati, Yuzammi, Julisasi Tri Hadiah","doi":"10.3897/phytokeys.249.133737","DOIUrl":"https://doi.org/10.3897/phytokeys.249.133737","url":null,"abstract":"<p><p><i>Alocasiaroseus</i> is described as a new species from Aceh Besar Regency, Sumatra (Indonesia). The plants found produce stunning inflorescence, leading to over-collecting in the wild. The new species is morphologically similar to <i>A.flemingiana</i> but differs by its greyish green adaxial leaves and pale reddish to greenish purple or pale brownish green abaxial leaves, lacking interprimary veins and sinus not naked, thecae overtopped by synconnective, and a pale pink appendix. The new species is also similar to <i>A.arifolia</i>, from which it differs by the glabrous and pale dull green petiole, the colour of abaxial and adaxial leaves, not forming interprimary vein, sinus not naked, and pale pink appendix. The new species is compared with other similar Indonesian taxa and an identification key to the species of <i>Alocasia</i> in Sumatra, supplemented with photographs, are provided.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"249 ","pages":"223-229"},"PeriodicalIF":1.3,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11605295/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142771298","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 studies on the genus <i>Sanicula</i> (Apiaceae) from China (III): The morphology and distribution of <i>S.caerulescens</i> (Apiaceae), with <i>S.oviformis</i> reduced to a new synonym.","authors":"Hui-Min Li, Wei Zhou, Jun-Wen Zhu, Chun-Feng Song","doi":"10.3897/phytokeys.249.136854","DOIUrl":"https://doi.org/10.3897/phytokeys.249.136854","url":null,"abstract":"<p><p>In the present study, we examined the morphological variations within <i>Saniculacaerulescens</i> and determined the identity of <i>S.oviformis</i> through observations of herbarium specimens (including type material) and field studies of plants in their type locality. Our findings revealed that <i>S.oviformis</i>, originally described from Nanchuan County in southern Chongqing, is conspecific with <i>S.caerulescens</i>. This species is mainly distributed in Chongqing, Guizhou, western Hunan, Sichuan and north-eastern Yunnan in China, as well as in Hà Giang in Vietnam. Key morphological characters of leaves, inflorescences and fruits confirm this synonymy. Based on these findings, we propose reducing <i>S.oviformis</i> to a synonym of <i>S.caerulescens</i>. Additionally, the geographical distribution of <i>S.caerulescens</i> is clarified.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"249 ","pages":"205-222"},"PeriodicalIF":1.3,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11602969/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142751387","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":"Insights to the taxonomy and phylogeny of the genus <i>Ptilagrostis</i> worldwide (Poaceae, Stipeae) with a key to species identification, checklist and outlines for further studies.","authors":"Marta Krzempek, Ewelina Klichowska, Marcin Nobis","doi":"10.3897/phytokeys.249.128729","DOIUrl":"10.3897/phytokeys.249.128729","url":null,"abstract":"<p><p><i>Ptilagrostis</i> (false needlegrass) is a genus of high-mountain grasses distributed in Central and North-East Asia, as well as in North America. The phylogenetic position of the genus <i>Ptilagrostis</i> within the Stipeae is well defined based on micromorphological patterns of lemma epidermis and moleculs. However, there is a lack of a comprehensive taxonomic revision of the genus in its entire distribution range. In this study, we performed comprehensive analyses using integrative taxonomic methods, aiming at both micromorphological and macromorphological analyses, and molecular analyses based on SNPs obtained from DArT genome-wide sequencing, in which we considered all taxa representing the genus in order to establish phylogenetic relationships between its members. We analysed all species possessing the characteristic '<i>Ptilagrostis</i> pattern' of the lemma epidermis, with a particular reference to species possessing the terminal segment of the awn (seta) covered by short (up to 1 mm long) hairs that, until now, were treated as representatives of the genus <i>Achnatherum</i>. Following with the result of our molecular, morphological and anatomical analyses, the genus <i>Ptilagrostis</i> is represented by 15 species, one subspecies and five varieties organised in three well supported phylogenetic clades corresponding to the three sections: <i>Ptilagrostis</i>, <i>Barkworthia</i> and <i>Chenella</i>. In this paper, we provide an original key to identifying false needlegrass species, together with a checklist containing the intrageneric species-organisation. In addition, for each species, we present the data regarding nomenclatural types, morphological description, and information on the geographical distribution, habitat preferences and altitudinal ranges. We proposed two new varieties within the genus <i>Ptilagrostis</i>, P.glabrifoliavar.himalayensis and P.concinnavar.xizangensis, and the new section Chenella comprising three species with awns scabrous or covered by very short hairs up to 0.3 mm long. Additionally, we transfer <i>Stipachingii</i> to <i>Ptilagrostischingii</i>, Achnatherumchingiivar.laxum to P.chingiivar.laxum, and Ptilagrostisconcinnasubsp.schischkinii to P.junatoviivar.schischkinii. Lectotypification was made for three taxa, Stipamongholicavar.minutiflora, <i>P.czekanowskii</i>, and <i>P.tibetica</i>.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"249 ","pages":"115-180"},"PeriodicalIF":1.3,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11584906/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142710904","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":"Morphological and molecular characterization of <i>Halamphoravantushpaensis</i> (Bacillariophyceae, Amphipleuraceae), a new diatom species widely dispersed on the shores of the soda Lake Van (Türkiye).","authors":"Elif Yılmaz, Romain Gastineau, Cüneyt Nadir Solak, Ewa Górecka, Rosa Trobajo, Monique Turmel, Claude Lemieux, Christian Otis, Andrzej Witkowski, David G Mann","doi":"10.3897/phytokeys.249.133205","DOIUrl":"10.3897/phytokeys.249.133205","url":null,"abstract":"<p><p>In this study, we describe <i>Halamphoravantushpaensis</i> <b>sp. nov.</b>, a newly identified diatom species found in the highly alkaline Lake Van in Eastern Turkey (Türkiye). This new species is characterized morphologically by light and scanning electron microscopy, performed on both wild and cultivated samples. Two monoclonal cultures were submitted to a genome-skimming approach, giving access to the complete sequence of their nuclear rRNA cluster of genes, mitochondrial and plastid genomes. Both strains were highly similar from the genomic point of view, with few mutations noted, although in organellar genomes some of them concerned protein coding genes and were non-silent. Also, the group II intron in the mitochondrial <i>cox1</i> gene was found to display a relatively high number of polymorphisms. The plastome also distinguishes itself from other <i>Halamphora</i> spp. by the extension of its inverted repeat at the expense of the two single copy regions of the genome. Maximum likelihood molecular phylogeny inferred from a concatenated three genes dataset <i>(18S</i>, <i>psbC</i> and <i>rbcL</i>) positions this species within the K clade, which is known to contain hypersaline to freshwater species.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"249 ","pages":"95-114"},"PeriodicalIF":1.3,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11584902/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142710905","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":"Resurrection of <i>Euryadegeneri</i> (Pentaphylacaceae), endemic to Kaua'i, Hawaiian Islands.","authors":"J Christopher Havran, Kenneth R Wood, David H Lorence","doi":"10.3897/phytokeys.249.131778","DOIUrl":"https://doi.org/10.3897/phytokeys.249.131778","url":null,"abstract":"<p><p><i>Euryadegeneri</i> Kobuski (Pentaphylacaceae), a dioecious shrub endemic to Kaua'i, is resurrected from synonymy with <i>E.sandwicensis</i> A. Gray. <i>Euryadegeneri</i> is distributed in montane mesic to wet forests in central and northwestern Kaua'i. It can be distinguished from <i>E.sandwicensis</i> by its glabrous young stems, leaves and pedicels, linear-elliptic to ovate-elliptic leaves, longer pedicels (5-11 mm long), and shorter petals (4.5-7 mm long). A key to Hawaiian <i>Eurya</i> is provided. Two lectotypes are here assigned. <i>Euryadegeneri</i> is preliminarily designated as Critically Endangered according to the IUCN Red List guidelines.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"249 ","pages":"193-203"},"PeriodicalIF":1.3,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11584907/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142710907","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}