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Article
Published: 2018-08-30

Hedyotis taishanensis (Rubiaceae): A new species from Guangdong, China

Key laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, Guangdong 510650, 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, Guangdong 510650, 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, Guangdong 510650, China;
Taicheng Town, Taishan City, Guangdong 529200, China
Key laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, Guangdong 510650, China
Eudicots China Hedyotis new species Rubiaceae

Abstract

Hedyotis taishanensis is described as a new species from China. It is similar to H. acutangula, but obviously differs in unbranched herbal stems with slightly winged ridges, petiolated leaves, abaxially pubescent stipules, terminal pleiochasium inflorescence. The phylogenetic analysis from nuclear ITS and plastid petD sequences of 27 taxa revealed that H. taishanensis was an independent lineage but closely related to the clade including the sympatric species endemic to the Pearl River Delta, Guangdong, China. It was evaluated as Least Concern according to the IUCN Red List Categories and Criteria.

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