Taxonomic studies on the Chinese Costaceae I: a new name and two new combinations

JUAN CHEN; LIN-YA ZENG; SI-JIN ZENG; YUN-HONG TAN; NIAN-HE XIA

doi:10.11646/phytotaxa.512.3.3

Issue: Vol. 512 No. 3: 27 July 2021

Type: Article

Published: 2021-07-27

DOI: 10.11646/phytotaxa.512.3.3

Page range: 159–168

Abstract views: 41

PDF downloaded: 1

Taxonomic studies on the Chinese Costaceae I: a new name and two new combinations

JUAN CHEN⁺⁻
LIN-YA ZENG⁺⁻
SI-JIN ZENG⁺⁻
YUN-HONG TAN⁺⁻
NIAN-HE XIA⁺⁻

Key Laboratory of Plant Resources Conservation & Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, 510650, Guangzhou, People’s Republic of China

Key Laboratory of Plant Resources Conservation & Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, 510650, Guangzhou, People’s Republic of China, Department of Horticulture and Landscape Architecture, Zhongkai University of Agriculture and Engineering, 510225, Guangzhou, People’s Republic of China

Key Laboratory of Plant Resources Conservation & Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, 510650, Guangzhou, People’s Republic of China

Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences & Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, Yunnan 666303, P.R. China, Center of Conservation Biology, Core Botanical Gardens, Chinese Academy of Sciences, Menglun, Mengla,Yunnan 666303, P.R. China

Key Laboratory of Plant Resources Conservation & Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, 510650, Guangzhou, People’s Republic of China

Monocots Costaceae Hellenia new combination new name

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Abstract

Costus chinensis and C. oblongus (Costaceae) has been previously placed in synonymy under C. lacerus. Our critical examination of herbarium specimens including type material demonstrates that they are morphologically distinct from each other. Therefore, the independent specific status of C. chinensis and C. oblongus is reinstated. According to recent studies, Costus chinensis as well as other two Chinese species, C. oblongus and C. viridis, should be transferred to Hellenia. Thus, a new name for C. chinensis, and two new combinations are proposed. A detailed description of C. chinensis along with a distribution map of three allied species is also provided.

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