Rohdea gymnogyna (Asparagaceae), a new species from southern Gansu, China

IF 1 4区 生物学 Q3 PLANT SCIENCES Phytotaxa Pub Date : 2024-01-11 DOI:10.11646/phytotaxa.634.1.8
Huizhe Feng, Ting Xu, M. Bi, Yan Ying Zhao, CE Chang, You Jun Wang
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Abstract

Rohdea gymnogyna, a new species from southern Gansu Provinces in northwestern China, is described and illustrated. It is apparently most closely related to R. rotiformis described from Sichuan, southwestern China. These two species share a smooth annular ledge appendage at the throat of the perianth tube. It is, however, readily distinguishable mainly by the lanceolate perianth lobes which strongly curved into a "W" shape in longitudinal section, the very short and bowl-shaped perianth tube, the ovary extends beyond the perianth tube. The taxonomic relationships of the new species to R. urotepala and R. lichuanensis also with an annular ledge appendage were also briefly discussed.
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Rohdea gymnogyna(天门冬科),中国甘肃南部的一个新种
Rohdea gymnogyna是产自中国西北部甘肃省南部的一个新种,本文对其进行了描述并绘制了插图。rotiformis 的亲缘关系最为密切。这两个种的花被筒喉部都有一个光滑的环状突起附属物。不过,它很容易区分,主要是披针形的花被裂片在纵切面上强烈弯曲成 "W "形,花被筒非常短且呈碗状,子房延伸到花被筒之外。此外,还简要讨论了该新种与同样具有环状壁架附属物的 R. urotepala 和 R. lichuanensis 在分类学上的关系。
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来源期刊
Phytotaxa
Phytotaxa PLANT SCIENCES-
CiteScore
1.90
自引率
27.30%
发文量
956
审稿时长
1 months
期刊介绍: Phytotaxa is a peer-reviewed, international journal for rapid publication of high quality papers on any aspect of systematic and taxonomic botany, with a preference for large taxonomic works such as monographs, floras, revisions and evolutionary studies and descriptions of new taxa. Phytotaxa covers all groups covered by the International Code of Nomenclature foralgae, fungi, and plants ICNafp (fungi, lichens, algae, diatoms, mosses, liverworts, hornworts, and vascular plants), both living and fossil. Phytotaxa was founded in 2009 as botanical sister journal to Zootaxa. It has a large editorial board, who are running this journal on a voluntary basis, and it is published by Magnolia Press (Auckland , New Zealand). It is also indexed by SCIE, JCR and Biosis. All types of taxonomic, floristic and phytogeographic papers are considered, including theoretical papers and methodology, systematics and phylogeny, monographs, revisions and reviews, catalogues, biographies and bibliographies, history of botanical explorations, identification guides, floras, analyses of characters, phylogenetic studies and phytogeography, descriptions of taxa, typification and nomenclatural papers. Monographs and other long manuscripts (of 60 printed pages or more) can be published as books, which will receive an ISBN number as well as being part of the Phytotaxa series.
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