Two new species of Oreocharis (Gesneriaceae) from Fan Si Pan, the highest mountain in Vietnam

Two new species of Oreocharis Benth. from Fan Si Pan, the highest mountain in Vietnam (Sa Pa) are described and illustrated.

Wen Hong Chen1,3, Quang Hieu Nguyen2, Run Zheng Chen1,3, Tien Hiep Nguyen2, Sinh Khang Nguyen4, Van Tap Nguyen2, Michael M?ller5, David J. Middleton6, Yu-Min Shui1,3

1 Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, 132 Lanhei Road, Kunming 650201, Yunnan, China 

2 Centre for Plant Conservation of Vietnam (CPC), Vietnam Union of Science and Technology Associations, 25/32 Lane 191, Lac Long Qua Road, Hanoi, Vietnam 

3 Karst Conservation Initiative of Yunnan, 132 Lanhei Road, Kunming 650201, Yunnan, China 

4 Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi, Vietnam 5 Royal Botanic Garden Edinburgh, 20A Inverleith Row, Edinburgh EH3

5 LR, UK 6 Herbarium, Singapore Botanic Gardens, National Parks Board, 1 Cluny Road, Singapore 259569

Corresponding author: Yu-Min Shui (ymshui@mail.kib.ac.cn)

PubYear : 2018

Volume: 94

Publication Name: PhytoKeys

Page number: 95-106

Abstract: Two new species of Oreocharis Benth. from Fan Si Pan, the highest mountain in Vietnam (Sa Pa) are described and illustrated. Oreocharis grandiflora W.H.Chen, Q.H.Nguyen & Y.M.Shui, is similar to O. flavida Merr. from Hainan province, China, but differs mainly by its larger and infundibuliform corolla, stamens adnate to the base of the corolla tube and stamens coherent in two pairs. The second, Oreocharis longituba W.H.Chen, Q.H.Nguyen & Y.M.Shui, is similar to O. hirsuta Barnett, endemic to northern Thailand, but mainly differs in its pubescence, coherent stamens and glabrous filaments.

Keywords: Biogeographical affinis, Sino-Himalayan forest subkingdom, Southeastern Asia, Oreocharis with yellow or orange flowers

Link:https://phytokeys.pensoft.net/article/21329/