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Issue: Vol. 269 No. 3: 5 August 2016
Type: Article
Published: 2016-08-05
DOI: 10.11646/phytotaxa.269.3.6
Page range: 231–235
Abstract views: 21
PDF downloaded: 1

A new species of Ptilagrostis (Stipeae, Poaceae) from Qinghai-Tibet Plateau

State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China University of Chinese Academy of Sciences, Beijing 100049, China.
State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China University of Chinese Academy of Sciences, Beijing 100049, China.
State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
Chromosome Taxonomy China Ptilagrostis concinna Stipeae Monocots

Abstract

A new species, Ptilagrostis arcuata, from Qinghai-Tibet Plateau is described and illustrated. It is easily distinguished from the similar P. concinna by its arcuate or heliciform awns with golden yellow or pale yellow hairs, narrower basal leaves, and absence of bracts below the panicles. The chromosome number of the new species is 2n=22, karyotype 2n=22=14m+6sm+2st.