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Issue: Vol. 635 No. 2: 24 Jan. 2024
Type: Article
Published: 2024-01-24
DOI: 10.11646/phytotaxa.635.2.8
Page range: 182-188
Abstract views: 123
PDF downloaded: 8

Leptomischus bracteosus (Rubiaceae), a new species from Yunnan, 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. Yunnan International Joint Laboratory of Southeast Asia Biodiversity Conservation, Mengla 666303, Yunnan, China.
Management and Conservation Bureau of Yuanyang Guanyinshan Provincial Nature Reserve, Yuanyang 662400, Yunnan, China.
Management and Conservation Bureau of Yuanyang Guanyinshan Provincial Nature Reserve, Yuanyang 662400, Yunnan, China.
Management and Conservation Bureau of Yuanyang Guanyinshan Provincial Nature Reserve, Yuanyang 662400, Yunnan, 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. Yunnan International Joint Laboratory of Southeast Asia Biodiversity Conservation, Mengla 666303, Yunnan, China.
Argostemmateae coffee plant diversity plant taxonomy southwest China Eudicots

Abstract

Leptomischus bracteosus, a new species of Rubiaceae from Yunnan, China, is described and illustrated. It shares similarities with L. primuloides and L. parviflorus, including similar shape, indumentum, the number of secondary veins on isophyllous leaves, and the inflorescences bear several distylous flowers. However, it differs from them and other congeners due to it having four bracts and bracteoles, resembling stipules that are subtriangular to rhombic or broadly ovate with truncate base, and the calyx limb lobed for approximately one-third. An updated key to the world species of Leptomischus is also provided.

 

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