A peer-reviewed open-access journal PhytoKeys 85: 59–67Gelidocalamus (2017) xunwuensis (Poaceae, Bambusoideae), a new species... 59 doi: 10.3897/phytokeys.85.13804 RESEARCH ARTICLE http://phytokeys.pensoft.net Launched to accelerate biodiversity research Gelidocalamus xunwuensis (Poaceae, Bambusoideae), a new species from southeastern Jiangxi, China Wen-Gen Zhang1,2, Xue-Nan Ji1,2, Yu-Guang Liu1,2, Wei-Jian Li2, Guang-Yao Yang1,2 1 Jiangxi Provincial Key Laboratory for Bamboo Germplasm Resources and Utilization, Forestry College, Jiangxi Agricultural University, Nanchang 330045, P. R. China 2 Collaborative Innovation Center of Jiangxi Typical Trees Cultivation and Utilization, Nanchang 330045, P. R. China Corresponding author: Wen-Gen Zhang (
[email protected]); Guang-Yao Yang (
[email protected]) Academic editor: C. Morden | Received 27 May 2017 | Accepted 15 August 2017 | Published 31 August 2017 Citation: Zhang W-G, Ji X-N, Liu Y-G, Li W-J, Yang G-Y (2017) Gelidocalamus xunwuensis (Poaceae: Bambusoideae), a new species from southeastern Jiangxi, China. PhytoKeys 85: 59–67. https://doi.org/10.3897/phytokeys.85.13804 Abstract Gelidocalamus xunwuensis W.G.Zhang & G.Y.Yang, a new species collected from Xunwu County of Ji- angxi Province in China, is described and illustrated. The new species is similar toG. stellatus in the habit, but differs by internodes sparsely hairy with granuliferous warts, culm sheath stiffly hairy, culm sheath blade broadly lanceolate to narrowly triangular, each node with a ring of appressed trichomes below, foli- age leaves broadly lanceolate to narrowly oblong, and new shoots occurring in late October. Keywords Arundinarieae, Bambusoideae, bamboo, leaf epidermis, SEM, taxonomy Introduction The genus Gelidocalamus Wen (1982: 21) includes ca.