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Issue: Vol. 662 No. 2: 8 Aug. 2024
Type: Article
Published: 2024-08-08
DOI: 10.11646/phytotaxa.662.2.5
Page range: 170-176
Abstract views: 31
PDF downloaded: 3

Peliosanthes thachii (Asparagaceae), a new species from Vietnam

Southern Institute of Ecology, Institute of Applied Materials Science, Vietnam Academy of Science and Technology, No. 1D, TL 29 Street, Thanh Loc Ward, District 12, Ho Chi Minh City, Vietnam, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, No. 1D, TL 29 Street, Thanh Loc Ward, District 12, Ho Chi Minh City, Vietnam
Southern Institute of Ecology, Institute of Applied Materials Science, Vietnam Academy of Science and Technology, No. 1D, TL 29 Street, Thanh Loc Ward, District 12, Ho Chi Minh City, Vietnam
Phuoc Binh National Park, Phuoc Binh Commune, Bac Ai District, Ninh Thuan Province, Vietnam
Southern Institute of Ecology, Institute of Applied Materials Science, Vietnam Academy of Science and Technology, No. 1D, TL 29 Street, Thanh Loc Ward, District 12, Ho Chi Minh City, Vietnam
Southern Institute of Ecology, Institute of Applied Materials Science, Vietnam Academy of Science and Technology, No. 1D, TL 29 Street, Thanh Loc Ward, District 12, Ho Chi Minh City, Vietnam
endemic Neolourya Peliosanthes Phuoc Binh National Park southern Central of Vietnam Monocots

Abstract

Peliosanthes thachii is described and illustrated as a new species endemic to southern Vietnam. This is the fifth species found for the Neolourya group as it has a slender tortuous style with the stigma positioned above the level of anthers and an inferior ovary. The new species is morphologically closest to P. curviandra but it is distinguishable from all the others of the group by having smaller dimension leaves and floral parts, spherical and hardly open perianth, short and strongly tortous style and purple ovules. The data on phenology, distribution, and provisional assessment of conservation status of the new taxon are provided.

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