Orinus longiglumis (Poaceae: Chloridoideae), a New Species from Xizang (Tibet), China

Xu Su; Lian-Bing Cai

doi:10.5735/085.046.0211

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Xu Su,^1,2 Lian-Bing Cai¹

¹1)Northwest Plateau Institute of Biology, the Chinese Academy of Sciences, Xining, Qinghai 810001, C
²2)Graduate School of the Chinese Academy of Sciences, Beijing 100049, China

Abstract

Orinus longiglumis L.B. Cai & X. Su sp. nova (Poaceae) is described and illustrated. It is endemic to the south-central part of Xizang Zizhiqu (Tibet), China, occurring at an elevation of 3040 to 3650 m on sandy soils. It resembles O. thoroldii, but differs from that species by the commonly hairy culms and leaves, longer panicles, longer glumes that are sparsely spinulose and pilose, longer anthers, and the paleas that are shorter than the lemmas. Orinus longiglumis differs from all other known species of Orinus by having glumes that are longer than or subequal to the adjacent florets.

Citation Download Citation

Xu Su and Lian-Bing Cai "Orinus longiglumis (Poaceae: Chloridoideae), a New Species from Xizang (Tibet), China," Annales Botanici Fennici 46(2), 143-147, (1 April 2009). https://doi.org/10.5735/085.046.0211

Received: 9 August 2007; Accepted: 1 December 2007; Published: 1 April 2009

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