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Issue: Vol. 616 No. 1: 21 Sept. 2023
Type: Article
Published: 2023-09-21
DOI: 10.11646/phytotaxa.616.1.6
Page range: 79-88
Abstract views: 132
PDF downloaded: 10

Two new species of Gigantochloa (Poaceae: Bambusoideae) from Yunnan, China

Guangdong Eco-engineering Polytechnic; Guangzhou 510520; Guangdong; China
Key Laboratory of Plant Resources Conservation and Sustainable Utilization & Guangdong Provincial Key Laboratory of Applied Botany; South China Botanical Garden; Chinese Academy of Sciences; Guangzhou 510650; Guangdong; China; Conservation Biology; Core Botanical Gardens; Chinese Academy of Sciences; Guangzhou 510650; Guangdong; China
No.2 Middle school of Zhuzhou; Zhuzhou 412007; Hunan; China
Key Laboratory of Plant Resources Conservation and Sustainable Utilization & Guangdong Provincial Key Laboratory of Applied Botany; South China Botanical Garden; Chinese Academy of Sciences; Guangzhou 510650; Guangdong; China; Conservation Biology; Core Botanical Gardens; 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 & Guangdong Provincial Key Laboratory of Applied Botany; South China Botanical Garden; Chinese Academy of Sciences; Guangzhou 510650; Guangdong; China; No.2 Middle school of Zhuzhou; Zhuzhou 412007; Hunan; China
Key Laboratory of Plant Resources Conservation and Sustainable Utilization & Guangdong Provincial Key Laboratory of Applied Botany; South China Botanical Garden; Chinese Academy of Sciences; Guangzhou 510650; Guangdong; China; No.2 Middle school of Zhuzhou; Zhuzhou 412007; Hunan; China
Monocots Bambuseae Gigantochloa morphology taxonomy Xishuangbanna

Abstract

Two new species of Gigantochloa (Poaceae: Bambusoideae) from Yunnan, China, namely Gigantochloa brachystachya and G. maneensis, are described and illustrated. G. brachystachya is morphologically similar to G. levis, but differs in its infranodal region with a ring of white hairs, culm leaf with erect blade, linear and glabrous auricle being ca. 10 mm wide and less than 1 mm tall, and glabrous ligule being 5–10 mm tall, and foliage leaf with glabrous sheath, 3–5 mm tall ligule and 2–2.5 mm tall outer ligules. Gigantochloa maneensis is morphologically similar to G. callosa, but differs in its intranode and infranodal region both with a ring of white hairs, culm leaf with densely black-hispid sheath abaxially and without stripes, erect blade and oblong auricle being 6–7 mm wide, and sparsely brown-hispid foliage leaf sheaths.

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