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Issue: Vol. 645 No. 1: 18 Apr. 2024
Type: Article
Published: 2024-04-18
DOI: 10.11646/phytotaxa.645.1.8
Page range: 85-90
Abstract views: 64
PDF downloaded: 1

Begonia dakrongensis (Begoniaceae), a new species from Dakrong Nature Reserve, Quang Tri province in Central Vietnam

Vietnam National University of Forestry, 21A Street, Xuan Mai, Chuong My, Hanoi, Vietnam
Mien Trung Institute for Scientific Research, Vietnam National Museum of Nature, Vietnam Academy of Science and Technology, 321 Huynh Thuc Khang street, Thua Thien Hue, Vietnam
Dakrong Natural Reserve, Ta Long, Dakrong, Quang Tri, Vietnam
Herbarium of Taiwan Forestry Research Institute, Taiwan Forestry Research Institute, No. 53, Nan–Hai Road, Taipei 100, Taiwan
endemism plant diversity plant taxonomy Quang Tri province Dakrong Nature Reserve Eudicots

Abstract

A new species of Begonia (Begoniaceae), B. dakrongensis, from Central Vietnam is described and illustrated. B. dakrongensis resembles B. abbreviata in its rhizomatous habit, short cymose-paniculate inflorescence with congested bracts, 4-tepaled staminate flowers, and 5-tepaled pistillate flowers. However, the new species markedly differs by having obtriangular-spathulate to oblong-obovate or widely obovate lamina (vs. ovate to broadly ovate), not oblique or nearly so (vs. oblique), widely obovate anthers (vs. narrowly obovate), and trigonous-globose ovary (vs. trigonous-ellipsoid).

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