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Issue: Vol. 777 No. 3: 2 Oct. 2026
Type: Article
Published: 2026-10-02
DOI: 10.11646/phytotaxa.777.3.1
Page range: 201-211
Abstract views: 81
PDF downloaded: 47

New generic record of Tirpitzia Hallier f. (Linaceae) for Laos, with the description of a new species

Systematic Botany Laboratory; Department of Biological Sciences; Graduate School of Science; Tokyo Metropolitan University; 1-1 Minami-Osawa; Hachioji; Tokyo 192-0397; Japan; Faculty of Environmental Sciences; National University of Laos; Dongdok Campus; Xaythany District; Vientiane Capital; Laos
Kagoshima University Museum; Kagoshima University; 1-21-30; Korimoto; Kagoshima 890-0065; Japan
Institute of Life Sciences; Vietnam Academy of Science and Technology; 85 Tran Quoc Toan Street; Xuan Hoa Ward; Ho Chi Minh City; Vietnam
Systematic Botany Laboratory; Department of Biological Sciences; Graduate School of Science; Tokyo Metropolitan University; 1-1 Minami-Osawa; Hachioji; Tokyo 192-0397; Japan
Faculty of Forest Science; National University of Laos; Dongdok Campus; Xaythany District; Vientiane Capital; Laos
Eudicots flora Indochina karst-associated Malpighiales taxonomy

Abstract

Tirpitzia laotica (Linaceae) is described and illustrated from limestone karst in Vang Vieng District, central Laos, representing the first record of the genus Tirpitzia in the country. The new species is distinguished from previously known species in the genus by a combination of strikingly long inflorescences up to 15 cm long, glandular bracteoles and sepals, white corollas with yellow markings at the throat, and a 2-locular ovary. An updated key and a distribution map of the five species currently recognized in the genus are provided.

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How to Cite

Phonepaseuth, P., Tagane, S., Dang, V.-S., Takayama, K. & Souladeth, P. (2026) New generic record of Tirpitzia Hallier f. (Linaceae) for Laos, with the description of a new species. Phytotaxa 777 (3): 201–211. https://doi.org/10.11646/phytotaxa.777.3.1