Thalictrum cuonaense (Ranunculaceae) is merged with the Himalayan T. reniforme, with notes on its morphologically similar species

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

doi:10.11646/phytotaxa.554.3.2

Issue: Vol. 554 No. 3: 14 July 2022

Type: Article

Published: 2022-07-14

DOI: 10.11646/phytotaxa.554.3.2

Page range: 221-244

Abstract views: 31

PDF downloaded: 1

Thalictrum cuonaense (Ranunculaceae) is merged with the Himalayan T. reniforme, with notes on its morphologically similar species

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 chelidonii Thalictrum neurocarpum Thalictrum tamurae 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 cuonaense (Ranunculaceae), described from Cona county in southern Xizang (Tibet), China, is conspecific with T. reniforme, an elegant Himalayan species widely distributed in Bhutan, China (southern Xizang), northeastern India (Sikkim), and Nepal. We therefore reduce T. cuonaense to the synonymy of T. reniforme herein. Lectotypification is proposed for T. reniforme. Taxonomic notes are provided for another two distinctive Himalayan species, T. chelidonii and T. neurocarpum, to clarify their identification confusion with T. reniforme. The identity of T. tamurae, described from central-western Myanmar, is also discussed.

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