来自中国西藏南部的无患子（凤仙花科）新种及关于 I. leptocarpa Hook. f. 的补充知识

IF 1 4区生物学 Q3 PLANT SCIENCES

Phytotaxa Pub Date : 2024-07-25 DOI:10.11646/phytotaxa.661.1.3

Jing Tian, T. Yuan, Shuai Peng, ZHU-ZHU Yang, Guangwan Hu, Qing-feng Wang

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引用次数: 0

摘要

本研究报告并描述了中国西藏南部的一个新种，Impatiens lhunzeensis（凤仙花科）和一个 I. leptocarpa 的新记录。基于形态学和系统发育证据，I. lhunzeensis 和 I. leptocarpa 均被归入 I. sect.Racemosae.新种与 I. drepanophora、I. eubotrya 和 I. principis 形成一个支系，而 I. leptocarpa 在系统发育上接近于 I. radiata 和 I. harae。新种与 I. radiata 和 I. harae 同域分布，形态上相似，但不同之处在于茎上有毛，叶片上有密毛，花序为总状花序，背侧花瓣肾形，下部萼片舟形，上部花瓣宽卵形至近圆形，下部花瓣三角形长圆形。

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A new species of Impatiens (Balsaminaceae) from Southern Xizang, China with supplementary knowledge on I. leptocarpa Hook. f.

A new species, Impatiens lhunzeensis (Balsaminaceae), and a new record of I. leptocarpa from southern Xizang, China are reported and described in this study. Based on morphological and phylogenetic evidence, both I. lhunzeensis and I. leptocarpa are assigned to I. sect. Racemosae. The new species forms a clade with I. drepanophora, I. eubotrya and I. principis, while I. leptocarpa is phylogenetically close to I. radiata and I. harae. The new species has a sympatric distribution with and is morphologically similar to both I. radiata and I. harae, but differs by the hairy stem, the densely hairy leaf blade, the raceme inflorescence, the reniform dorsal petals, the navicular lower sepal, the broadly ovate to sub-orbicular upper petals and the triangular oblong lower petals.

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来源期刊

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.