Oreocharispolyneura, a new species of Gesneriaceae from southern Yunnan, China

Yan-Xiong Gong; Hong-Bo Ding; Xiang-Shuai Yan; Fang Wen; Yao-Hua Tian; Yun-Hong Tan

doi:10.3897/phytokeys.214.93901

Oreocharispolyneura, a new species of Gesneriaceae from southern Yunnan, China

PhytoKeys. 2022 Nov 22:214:7-15. doi: 10.3897/phytokeys.214.93901. eCollection 2022.

Authors

Yan-Xiong Gong¹, Hong-Bo Ding^{2

3

4}, Xiang-Shuai Yan¹, Fang Wen^{5

6}, Yao-Hua Tian¹, Yun-Hong Tan^{2

3

4}

Affiliations

¹ Yunnan Institute of Tropical Crops, Jinghong, CN-666100, Yunnan, China Yunnan Institute of Tropical Crops Jinghong China.
² Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Menglun, Mengla, CN-666303, Yunnan, China Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences Mengla China.
³ Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, CN-666303, Yunnan, China Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences Mengla China.
⁴ Center of Conservation Biology, Core Botanical Gardens, Chinese Academy of Sciences, Menglun, Mengla, CN-666303, Yunnan, China Core Botanical Gardens, Chinese Academy of Sciences Mengla China.
⁵ Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin, CN-541006, Guangxi, China Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences Guilin China.
⁶ Gesneriad Committee of China Wild Plant Conservation Association, National Gesneriaceae Germplasm Resources Bank of GXIB, Gesneriad Conservation Center of China, Guilin Botanical Garden, Chinese Academy of Sciences, Guilin, CN-541006, Guangxi, China Guilin Botanical Garden, Chinese Academy of Sciences Guilin China.

Abstract

Oreocharispolyneura, a new species from southern Yunnan, China, is described and illustrated. It is morphologically similar to O.rhytidophylla by having more obvious lateral veins forming a crosslinked network on the adaxial surface of leaf blades, but can be distinguished by having more lateral veins (12-15 pairs vs. 7-9 pairs) of leaf blades, shorter corolla tubes (the length ratio of corolla tube to corolla lobes = 1.2-2.9 vs. 3.4-6) and shorter pistils (6-8 mm long vs. 27-30 mm long). In addition, a detailed morphological description, a photographic illustration, the distribution and phenology of the new species are presented.

Keywords: Oreocharisrhytidophylla; flora of Yunnan; morphology; new taxon; taxonomy.

Yan-Xiong Gong, Hong-Bo Ding, Xiang-Shuai Yan, Fang Wen, Yao-Hua Tian, Yun-Hong Tan.