Two new species of Yushania (Poaceae: Bambusoideae) from South China, with a taxonomic revision of related species

doi:10.1016/j.pld.2021.03.001

Plant Diversity ›› 2021, Vol. 43 ›› Issue (06): 492-501.DOI: 10.1016/j.pld.2021.03.001

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Two new species of Yushania (Poaceae: Bambusoideae) from South China, with a taxonomic revision of related species

Xia-Ying Ye^a,b, Yu-Xiao Zhang^c, De-Zhu Li^a

a Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China;
b Agronomy and Life Science Department, Zhaotong University, Zhaotong, Yunnan 657000, China;
c Yunnan Academy of Biodiversity, Southwest Forestry University, Kunming, Yunnan 650224, China

Received:2020-10-12 Revised:2021-03-08 Online:2021-12-25 Published:2022-01-11
Contact: De-Zhu Li
Supported by:
We thank Jing-Xia Liu of Kunming Institute of Botany, Chinese Academy of Sciences, and staff of Wanbaoshan Forest Farm and Shazipo Forest Farm for their assistance in the fieldwork. The study was funded by the National Natural Science Foundation of China (nos. 31800315, 31430011), and the Applied and Fundamental Research Foundation of Yunnan Province (2019FD059).

Abstract

Abstract: Two new species of Yushania (Poaceae, Bambusoideae, Arundinarieae) are described and illustrated from Hunan, China. Yushania longshanensis D.Z. Li & X.Y. Ye is distinguished from related species (Y. confusa, Y. angustifolia and Y. pachyclada) by having a thinner culm (0.2-0.3 cm in diameter), glabrous sheath scar, no oral setae, a large glabrous leaf blade (10-20×0.9-1.3 cm) and 3-4 pairs of secondary veins. Yushania stoloniforma D.Z. Li & X.Y. Ye has a distinctive scrambling habit, which differs from its putative close allies. Both of these two new species have a solitary branch at the basal nodes and can be assigned to Yushania sect. Yushania based on morphological features. Additionally, we treated Yushania gigantea T.P. Yi & L. Yang as a new synonym of Y. elevata T.P. Yi and renamed Y. microphylla T.P. Yi & L. Yang as Y. weiningensis D.Z. Li & X.Y. Ye.

Key words: Arundinarieae, Yushania, Hunan, New species, Taxonomy

Xia-Ying Ye, Yu-Xiao Zhang, De-Zhu Li. Two new species of Yushania (Poaceae: Bambusoideae) from South China, with a taxonomic revision of related species[J]. Plant Diversity, 2021, 43(06): 492-501.

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Two new species of Yushania (Poaceae: Bambusoideae) from South China, with a taxonomic revision of related species

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