Open AccessPtilagrostis contracta (Stipeae, Poaceae), a New Species Endemic to Qinghai-Tibet Plateau
Author(s) -
Zhongshuai Zhang,
Linglu Li,
Wenli Chen
Publication year - 2017
Publication title -
plos one
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.99
H-Index - 332
ISSN - 1932-6203
DOI - 10.1371/journal.pone.0166603
Subject(s) - biology , plateau (mathematics) , phylogenetic tree , endemism , poaceae , botany , panicle , evolutionary biology , ecology , genetics , mathematical analysis , mathematics , gene
A new species, Ptilagrostis contracta , endemic to Qinghai-Tibet Plateau is described and illustrated. It is distinguished from other species in Ptilagrostis by having contracted panicles, 1-geniculate awns with hairy columns and scabrous bristles and evenly pubescent lemmas. Evidence from lemma epidermal pattern, cytology and molecular phylogenetic analyses based on the nuclear ITS sequence data confirm its systematic position in Ptilagrostis .