Two new species of Lasianthus (Rubiaceae) from Hoang Lien National Park, northern Vietnam

VAN-SON DANG; AKIYO NAIKI

doi:10.11646/phytotaxa.423.1.4

Issue: Vol. 423 No. 1: 31 October 2019

Type: Article

Published: 2019-10-31

DOI: 10.11646/phytotaxa.423.1.4

Page range: 33–40

Abstract views: 39

PDF downloaded: 2

**Two new species of Lasianthus (Rubiaceae) from Hoang Lien National Park, northern Vietnam**

VAN-SON DANG⁺⁻
AKIYO NAIKI⁺⁻

The VNM Herbarium, Institute of Tropical Biology, Vietnam Academy of Science and Technology, 85 Tran Quoc Toan Street, District 3, Ho Chi Minh City, Vietnam.

Iriomote Station, Tropical Biosphere Research Center, University of the Ryukyus, 870 Uehara, Taketomi-cho, Yaeyama-gun, Okinawa, 907-1541 Japan.

Hoang Lien National Park Lasianthus new species Rubiaceae Vietnam Eudicots

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Abstract

Two new species, Lasianthus fansipanensis V.S. Dang & Naiki and Lasianthus sapaensis V.S. Dang & Naiki (sect. Nudiflorae), were discovered in the Hoang Lien National Park of northern Vietnam and are here described and illustrated. Colour photographs, preliminary conservation assessment, and tables comparing these two new species against two closely related species are also presented.