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Issue: Vol. 490 No. 1: 10 March 2021
Type: Article
Published: 2021-03-10
DOI: 10.11646/phytotaxa.490.1.10
Page range: 107–113
Abstract views: 37
PDF downloaded: 1

Premna caridantha (Lamiaceae: Permnoideae), a distinct new species from Kachin State, northern Myanmar

Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences & Centre for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla 666303, Yunnan, China. Center of Conservation Biology, Core Botanical Gardens, Chinese Academy of Sciences, Menglun, Mengla, Yunnan 666303, P.R. China.
Research Center of Ecological Sciences, College of Agronomy, Jiangxi Agricultural University, Nanchang 330045, Jiangxi, China.
Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences & Centre for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla 666303, Yunnan, China. Center of Conservation Biology, Core Botanical Gardens, Chinese Academy of Sciences, Menglun, Mengla, Yunnan 666303, P.R. China.
Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences & Centre for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla 666303, Yunnan, China. Center of Conservation Biology, Core Botanical Gardens, Chinese Academy of Sciences, Menglun, Mengla, Yunnan 666303, P.R. China.
Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences & Centre for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla 666303, Yunnan, China. University of Chinese Academy of Sciences, Shijingshan District, Beijing 100049, P.R. China.
Research Center of Ecological Sciences, College of Agronomy, Jiangxi Agricultural University, Nanchang 330045, Jiangxi, China.
morphology spike-like inflorescence tropical montane forests woody climber Eudicots

Abstract

A distinct new species of Premna, P. caridantha which was discovered from Putao District, Kachin State, northern Myanmar, is described and illustrated here. It is characterized by having large and intricate paniculiform inflorescences which branch three times with the terminal branch formed by a spike-like thyrse, zygomorphic corolla with a short-incurved tube, and a bright yellowish spot on the middle lob of the lower corolla lip. The species is most similar to P. grandipaniculata but clearly differs in leaf shape and corolla characters. Premna caridantha is the fourth species having spike-like thyrses in Premna and the third new Premna species recently discovered from northern Myanmar.