A New Species of Orinus (Poaceae) from Qinghai, China

Zhang Tong-lin; Cai Lian-bing

doi:10.3417/2006117

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Zhang Tong-lin,¹ Cai Lian-bing²

¹Northwest Plateau Institute of Biology, Chinese Academy of Sciences, Xining, Qinghai 810001, People's Republic of China; and Graduate School of the Chinese Academy of Sciences, Beijing 100039, People's Republic of China
²Northwest Plateau Institute of Biology, Chinese Academy of Sciences, Xining, Qinghai 810001, People's Republic of China cailb@nwipb.ac.cn

Abstract

A new species of Orinus Hitchcock, O. alticulmus L. B. Cai & Tong Lin Zhang, is described and illustrated. This species is endemic to Qinghai province, China, occurring at altitudes of 2450–2600 m on sandy soils. It resembles O. kokonorica (K. S. Hao) Tzvelev, but differs from that species by its slightly effuse panicles, longer spikelets usually with five or six florets, purple-yellow anthers, shorter caryopses, and the paleas usually longer than the lemmas. A key to the five species of the genus is provided.

Citation Download Citation

Zhang Tong-lin and Cai Lian-bing "A New Species of Orinus (Poaceae) from Qinghai, China," Novon: A Journal for Botanical Nomenclature 18(2), 275-278, (1 May 2008). https://doi.org/10.3417/2006117

Published: 1 May 2008

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