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Issue: Vol. 314 No. 1: 21 July 2017
Type: Article
Published: 2017-07-21
DOI: 10.11646/phytotaxa.314.1.15
Page range: 140–144
Abstract views: 38
PDF downloaded: 1

Phyllagathis phamhoangii (Sonerileae, Melastomataceae), a new species from central Vietnam

Department of Plant Resource, Institute of Ecology and Biological Resources, Vietnam Academy of Sciences and Technology, Hanoi, Vietnam.
Department of Specimen Collection Management, Vietnam National Museum of Nature, Vietnam Academy of Sciences and Technology, Hanoi, Vietnam. Graduate University of Science and Technology, Vietnam Academy of Sciences and Technology, Hanoi, Vietnam
Department of Crop Science, Faculty of Agriculture, University of Peradeniya, Peradeniya, Sri Lanka.
Department of Plant Resource, Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Duc Thang ward, Tu Liem Northern, Hanoi, Vietnam.
Komarov Botanical Institute, Russian Academy of Science, Prof. Popov Str. 2, RU-197376 St.-Petersburg, Russia.
Center of Scientific Research and Practice, Thu Dau Mot University, No 06, Tran Van On street, Phu Hoa ward, Thu Dau Mot city, Binh Duong province, Vietnam.
Vietnam plant diversity new species Melastomataceae Phyllagathis Eudicots

Abstract

Phyllagathis phamhoangii V.T.Pham, T.C.Vu & Ranil is described and illustrated from Quang Nam province, central Vietnam. Diagnostic features of the new species are the short acaulescent rhizomatous herbs with pink flowers. The described species is distinct from the closely allied P. nanakorniana in the sparse hairs on all its parts except petals and stamens, much longer petioles, dichasial inflorescences, longer hypanthia, stamens unequal in length, longer petals and ovary; and from P. subrotunda by the taller plants, smaller leaves with longer petioles, cordate to reniform blades with a shortly acuminate apex, dichasial inflorescences, longer and cylindrical peduncles, longer and narrower hypanthia. We suggest the IUCN conservation status for P. phamhoangii as Vulnerable.