Thalictrum virgatum var. obtusifolium (Ranunculaceae), a new synonym of T. virgatum, with the new record of the morphologically similar Himalayan species T. secundum for China

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

doi:10.11646/phytotaxa.570.2.5

Issue: Vol. 570 No. 2: 27 October 2022

Type: Article

Published: 2022-10-27

DOI: 10.11646/phytotaxa.570.2.5

Page range: 193-208

Abstract views: 26

PDF downloaded: 3

Thalictrum virgatum var. obtusifolium (Ranunculaceae), a new synonym of T. virgatum, with the new record of the morphologically similar Himalayan species T. secundum for China

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

morphology taxonomy Thalictrum squamiferum Xizang (Tibet) Yunnan Eudicots

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Abstract

Thalictrum virgatum var. obtusifolium (Ranunculaceae), described from northwestern Yunnan, China, has been totally overlooked since its description. Based on observations of herbarium specimens (including type material) and living plants in the wild, we demonstrate that it is not essentially different from the type variety, T. virgatum var. virgatum. We therefore reduce T. virgatum var. obtusifolium to the synonymy of T. virgatum. In addition, T. secundum, a species somewhat similar to T. virgatum in habit but actually closely related to T. squamiferum and previously recorded to be distributed only in Afghanistan, northern India, Nepal, and northern Pakistan, is here reported as a newly recorded species for China; it occurs in Gyirong county in southern Xizang (Tibet).

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