Oreocharis phuongii (Gesneriaceae), a new species from central Vietnam

By

Duy Le, Khuong
Nguyen, Thanh Trung
Nguyen, Phuong Thanh
Hoang, Thao Thi
Wen, Fang
Van Do, Truong

Type

Article

Date of Publication

2022-3-17

Original Publication

PhytoKeys

Volume

193

Pages

43--53

Subjects

Annamite Range , Didymocarpoideae , endemic to Vietnam , flora of Vietnam , limestone flora , new taxon

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.193.77083

 

Abstract

Oreocharis phuongii, a new species of Gesneriaceae from central Vietnam, is described and illustrated here. The new species is most similar to O. longifolia by sharing peduncles up to 22 cm long, bracts 2, zygomorphic, yellow flowers with tubular corolla, stamens 4 with two pairs of coherent anthers and capsules up to 6 cm long. It mainly differs from the latter by the combination of some morphological characters of leaves (shape, base, apex and margin), size of calyx lobes, indumentum of corolla tube and inner surface of three lower corolla lobes. Detailed morphological description together with colour illustration, information on phenology, distribution, ecology, preliminarily conservation status of the new species and comparison with its similar species are also presented.