Saturday, November 28, 2015

[Botany • 2015] Selaginella chuweimingii • A New Lycophyte Species (Selaginellaceae) from central Yunnan, China

Selaginella chuweimingii Xin M. Zhou, Z. R. He, Liang Zhang & Li Bing Zhang

A new lycophyte speciesSelaginella chuweimingii, from central Yunnan, China is described and illustrated. Selaginella chuweimingii is similar to S. sinensis in the habit and the morphology of strobili and sporophylls, but the new species can easily be distinguished from the latter by having ovate or oblong-ovate ventral leaves, extremely asymmetrically dorsal leaves, and oblong-ovate to ovate-lanceolate axillary leaves. Also the new species has lamellate ornamentation on megaspore surfaces and less prominent verrucae and ridges on microspore surfaces. The two species are further separated in geographical distribution with the new species occurring in central Yunnan Province while S. sinensis in northern and eastern China.

Keywords: Articulate group, megaspores, microspores, sporangial arrangement, Selaginella sinensis, Bryophytes, China

Xin-Mao Zhou, Zhao‐Rong He, Liang Zhang and Li-Bing Zhang. 2015. Selaginella chuweimingii (Selaginellaceae) sp. nov. from Yunnan, China. PHYTOTAXA. 231(3): 283–288.  DOI:  10.11646/phytotaxa.231.3.6