A new species of the Ranunculaceae from southwestern China based on morphological and molecular data

被引：2

作者：

Liu, Bing ^{[1
]}

Hao, Yun-Qing ^{[2
]}

Yang, Yong ^{[1
]}

Sun, Tian-Tian ^{[1
,3
]}

Lai, Yang-Jun ^{[4
]}

Zhang, Tao ^{[5
]}

He, Fei ^{[5
]}

机构：

[1] Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China

[2] Chengdu Univ Informat Technol, Dept Resources & Environm, Chengdu 610225, Peoples R China

[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[4] Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Jiangsu, Peoples R China

[5] Adm Xiaozhaizigou Natl Nat Reserve, Beichuan 622750, Peoples R China

来源：

PHYTOTAXA | 2016年 / 283卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Caltha dysosmoides; conservation; molecular systematics; new species; Ranunculaceae; taxonomy; RIBOSOMAL DNA; NUCLEAR; CHLOROPLAST; BIOGEOGRAPHY; PHYLOGENY; UTILITY;

D O I：

10.11646/phytotaxa.283.1.2

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Based on field investigations, morphological and molecular systematic studies, a new species, Caltha dysosmoides (Ranunculaceae) from southwestern China is described. It differs from all other known congeneric species by the densely dentate leaf margin, the pendulous pedicels, the scarlet flowers, the compressed filaments, and the triangular connective. To better understand taxonomy of this new species, phylogenetic analyses were conducted using a combined dataset from nrITS, plastid trnL-trnF region, and atpB-rbcL spacer. The results indicate that Caltha is monophyletic and C. dysosmoides is sister to C. sinogracilis. The conservation status of the new species is categorized as CR based on IUCN criteria.

引用

页码：43 / 53

页数：11

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