Thalictrum spiristylum (Ranunculaceae), described from northwestern Yunnan, China, is merged with T. atriplex

YOU-PAI ZENG; QIONG YUAN; QIN-ER YANG

doi:10.11646/phytotaxa.538.1.1

Issue: Vol. 538 No. 1: 3 March 2022

Type: Article

Published: 2022-03-03

DOI: 10.11646/phytotaxa.538.1.1

Page range: 1-20

Abstract views: 39

PDF downloaded: 3

***Thalictrum spiristylum* (Ranunculaceae), described from northwestern Yunnan, China, is merged with *T. atriplex***

YOU-PAI ZENG⁺⁻
QIONG YUAN⁺⁻
QIN-ER YANG⁺⁻

Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China; Center of Conservation Biology, Core Botanical Gardens, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China; University of Chinese Academy of Sciences, Beijing 100049, China

Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China; Center of Conservation Biology, Core Botanical Gardens, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China

lectotypification morphology new synonymy taxonomy Thalictrum leuconotum Thalictrum uncatum Eudicots

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Abstract

Based on critical observations on both herbarium specimens (including type material) and living plants in the wild, we demonstrate that Thalictrum spiristylum, described from northwestern Yunnan, China, is conspecific with T. atriplex, a Chinese species widely distributed in southwestern Qinghai, western Sichuan, northwestern Yunnan, and southeastern Xizang. We therefore reduce T. spiristylum to the synonymy of T. atriplex. Morphological distinction between T. atriplex and T. uncatum is clarified. Lectotypification is also proposed for T. atriplex.

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