Ten new species of Didymocarpus (Gesneriaceae: Didymocarpoideae) from Thailand

Pranee Nangngam; David J.  Middleton; Piyakaset Suksathan; Somran Suddee

doi:10.20531/tfb.2026.54.2.13

Authors

Pranee Nangngam Department of Biology, Faculty of Science, Naresuan University, Phitsanulok 65000, Thailand https://orcid.org/0000-0002-3867-2174
David J. Middleton Royal Botanic Garden Edinburgh, 20A Inverlieth Row, Edinburgh EH3 5LR, Scotland, U.K.
Piyakaset Suksathan Queen Sirikit Botanic Garden, P.O. Box 7, Mae Rim, Chiang Mai 50180, Thailand
Somran Suddee Forest Herbarium, Department of National Parks, Wildlife and Plant Conservation, 61 Phahonyothin Road, Lad Yao, Chatuchak, Bangkok 10900, Thailand

DOI:

https://doi.org/10.20531/tfb.2026.54.2.13

Keywords:

Flora of Thailand, taxonomy, Didymocarpinae, Trichosporeae

Abstract

Ten new species of the genus Didymocarpus are described from Thailand: Didymocarpus alboroseus, D. flaviflorus Nangngam, D. hongsonensis Nangngam, D. kiewbangii, D. kwanjaiae, D. mekongensis, D. niveus, D. phuwuaensis, D. suchartii Nangngam and D. vilaiwaniae. Full descriptions, distributions, ecology and colour plates are provided for all taxa. These additional new species increase the total number of Didymocarpus in Thailand to thirty-five species, and therefore, a key to the species of Didymocarpus in Thailand is also provided in this paper.

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Author Biography

David J. Middleton, Royal Botanic Garden Edinburgh, 20A Inverlieth Row, Edinburgh EH3 5LR, Scotland, U.K.

Singapore Botanic Gardens, National Parks Board, 1 Cluny Road, 259569, Singapore

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