Eutrema nanum (Brassicaceae), a new species from Chola Shan, Southwest China | Zendy

Guoqian Hao | Zendy; Ihsan A. AlShehbaz | Zendy; Lei Zhang | Zendy; Xinyi Guo | Zendy; Xu Songbai | Zendy; Jianquan Liu | Zendy

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Eutrema nanum (Brassicaceae), a new species from Chola Shan, Southwest China

Author(s) -

Guoqian Hao,

Ihsan A. AlShehbaz,

Lei Zhang,

Xinyi Guo,

Xu Songbai,

Jianquan Liu

Publication year - 2018

Publication title -

phytokeys

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.511

H-Index - 16

eISSN - 1314-2011

pISSN - 1314-2003

DOI - 10.3897/phytokeys.108.27049

Subject(s) - biology , sepal , brassicaceae , phylogenetic tree , botany , phylogenetic relationship , phylogenetics , pedicel , taxonomy (biology) , gene , genetics , pollen , stamen

Eutremananum , a new high-elevation (4500–4600 m) species from Chola Shan, Sichuan (Southwest China), is described and illustrated. It is similar morphologically to E.nepalense but is readily distinguished by having oblong to elliptic or obovate to spatulate (vs. suborbicular to broadly ovate) leaves, glabrous (vs. puberulent) sepals and ovate to oblong fruit 4–7 × 2–3 mm with flattened valves (vs. ovoid to subglobose fruit 2–3 × 1.8–2 mm with rounded valves). The genetic differences amongst E.nanum , E.nepalense and other close relatives are further confirmed by phylogenetic analyses using ITS and cpDNA sequence variations. The new combination E.sinense is proposed.

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