Gelidocalamusalbozonatus (Poaceae, Bambusoideae), a new species from the southeast of Chongqing, China, and analysis of the morphological diversity in the core group of Gelidocalamus

Yong-Long Li; Rong Guo; Hong-Jing Zhang; Si-Rong Yi; Guang-Yao Yang; Wen-Gen Zhang

doi:10.3897/phytokeys.236.111290

Gelidocalamusalbozonatus (Poaceae, Bambusoideae), a new species from the southeast of Chongqing, China, and analysis of the morphological diversity in the core group of Gelidocalamus

PhytoKeys. 2023 Nov 24:236:17-27. doi: 10.3897/phytokeys.236.111290. eCollection 2023.

Authors

Yong-Long Li^{1

2}, Rong Guo^{1

2}, Hong-Jing Zhang³, Si-Rong Yi³, Guang-Yao Yang^{1

2}, Wen-Gen Zhang^{1

2}

Affiliations

¹ Jiangxi Provincial Key Laboratory for Bamboo Germplasm Resources and Utilization, Forestry College, Jiangxi Agricultural University, Nanchang 330045, China Jiangxi Agricultural University Nanchang China.
² Collaborative Innovation Center of Jiangxi Typical Trees Cultivation and Utilization, Nanchang 330045, China Collaborative Innovation Center of Jiangxi Typical Trees Cultivation and Utilization Nanchang China.
³ Chongqing Three Gorges Medical College, WanZhou 404120, China Chongqing Three Gorges Medical College WanZhou China.

Abstract

Gelidocalamusalbozonatus W. G. Zhang, S. R. Yi & Y. L. Li, a new species of Gelidocalamus, collected from Pengshui County of Chongqing City in China, was described and illustrated herein. In this study, key morphological characters were compared between the new species and other eight "gelido-" members of Gelidocalamus. By using scanning electron microscopy (SEM), its leaf epidermal characters were observed in comparison with those of another three Gelidocalamus representatives. Our results show that the new taxon has the typical characteristics of the genus Gelidocalamus, both macromorphologically and micromorphologically. Moreover, it was most similar to G.tessellatus, but differed by a ring of white tomenta below per node, culm sheath base with densely purple verrucous setae and foliage leaf blades mesophyll.

Keywords: Arundinarieae; Bambusoideae; Poaceae; SEM; leaf epidermis.

Yong-Long Li, Rong Guo, Hong-Jing Zhang, Si-Rong Yi, Guang-Yao Yang, Wen-Gen Zhang.