Two new taxa of Gesneriaceae in the karst regions in North Vietnam

By

Chen, Wen Hong
Guo, Shiwei
Nguyen, Hieu Quang
Chen, Li
Shui, Yu-Min.

Type

Article

Date of Publication

2020

Original Publication

PhytoKeys

Volume

157

Pages

217--226

Subjects

Didymocarpoideae , flora of Vietnam , Limestone , natural park , new taxa , Protection

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.157.54697

 

Abstract

One new species and one new variety of Gesneriaceae in Vietnam are described, viz. Paraboea sinensis var. glabrissimavar. nov. and Primulina xuansonensissp. nov. These two new taxa grow in limestone regions in North Vietnam. The former new variety differs from Paraboea sinensis (Oliv.) Burtt var. sinensis in its young leaf abaxially, stem and peduncle sparsely and thin pannose, acute top of leaves, pistil glandular-pubescent or pubescent. The latter new species differs in its bracts 1.6–2.5 × 1.3–1.5 cm, corolla 3–3.5 cm long, corolla tube slightly curved near the base and inflated on the adaxial surface near the corolla lobes, and corolla abaxial lip lobes rounded. The two new taxa grow at Xuan Son National Natural Reserve, North Vietnam and remain undisturbed with low risk of extinction.