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Article
Published: 2022-05-12

Thalictrum fusiforme (Ranunculaceae), described from southeastern Xizang (Tibet), China, is merged with T. rostellatum, a Sino-Himalayan species

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
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
Eudicots geographical distribution lectotypification morphology new synonymy taxonomy

Abstract

Based on critical observations on herbarium specimens (including type material) and living plants in the wild, we demonstrate that Thalictrum fusiforme, described from Zayu county in southeastern Xizang (Tibet), China, is conspecific with T. rostellatum, a Sino-Himalayan species widely distributed in Bhutan, China (southwestern and southeastern Xizang, northwestern Yunnan), northern India, and Nepal. We therefore reduce T. fusiforme to the synonymy of T. rostellatum herein. The geographical distribution of T. rostellatum in China is also clarified through the correction of some misidentifications, and lectotypification is proposed for T. rostellatum.

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