Breyniahiemalis (Phyllanthaceae, Phyllantheae), a new species from Yunnan, south-west China

Feng Yang; Chao Chen; Jing-Yi Ye; Jian-Yong Wu; Huan-Chong Wang

doi:10.3897/phytokeys.206.85241

Breyniahiemalis (Phyllanthaceae, Phyllantheae), a new species from Yunnan, south-west China

PhytoKeys. 2022 Aug 26:206:75-86. doi: 10.3897/phytokeys.206.85241. eCollection 2022.

Authors

Feng Yang¹, Chao Chen², Jing-Yi Ye¹, Jian-Yong Wu³, Huan-Chong Wang^{1

4}

Affiliations

¹ School of Life Sciences, Yunnan University, Kunming 650091, Yunnan, China.
² Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla 666303, Yunnan, China.
³ Yuanjiang Savanna Ecosystem Research Station, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Yuanjiang 653300, Yunnan, China.
⁴ Yuxi Forestry and Grassland Bureau, Yuxi 653100, Yunnan, China.

Abstract

Breyniahiemalis Huan C. Wang & Feng Yang (Phyllanthaceae), of sect. Cryptogynium (Müll.Arg.) Welzen & Pruesapan in subg. Breynia, is described from Yunnan, south-west China. It is known from only a single locality in the valley of the Yuanjiang River, and usually occurs in the understory of the savanna vegetation. It is characterized by its broadly elliptic to orbicular leaf blades, shallowly plate-like calyces of the staminate flowers, ovaries with clearly erose rim and urceolate capsules. Morphological comparisons with similar species are also presented.

Keywords: Breynia sect. Cryptogynium; Sauropus; Yuanjiang River; endemism; savanna.

Feng Yang, Chao Chen, Jing-Yi Ye, Jian-Yong Wu, Huan-Chong Wang.