The newest published taxa and newest record of Gesneriaceae from China before 31 December 2019 (15)
2019-07-08 New taxa in China

No.15 FANG WEN

Petrocosmea weiyigangii (Gesneriaceae), a new species from a limestone cave in southern China

Gardens’ Bulletin Singapore 71 (1): 175–183

Abstract

A new species, Petrocosmea weiyigangii F.Wen (Gesneriaceae), is described from southern China. It differs from all other species of Petrocosmea in its deeply lobed leaf blades. It is only known from a limestone cave in northwestern Guangxi, China. Following the IUCN Red List categories and criteria, Petrocosmea weiyigangii is assessed as Critically Endangered.

        Original Link: https://www.nparks.gov.sg/sbg/research/publications/gardens-bulletin-singapore/listing-of-publications

        https://www.nparks.gov.sg/sbg/research/publications/gardens-bulletin-singapore/-/media/sbg/gardens-bulletin/gbs_71_01_y2019_v71_01/71_01_11_y2019_v71p1_gbs_pg175.pdf

The newest published taxa and newest record of Gesneriaceae from China before 31 December 2019 (15)

Fig. 1. The similar leaf morphology of A. Petrocosmea weiyigangii F.Wen. and B. Primulina multifida B.Pan & K.F.Chung. (Photos: F. Wen).

 The newest published taxa and newest record of Gesneriaceae from China before 31 December 2019 (15)

Fig. 2. Petrocosmea weiyigangii F.Wen. A. Habitat. B-1. Habit, with author’s finger for scale. B-2. Relative size of the adult plant with author’s hand for scale. C. Colony of flowering plants. D. Corolla viewed from the front. (Photos: F. Wen).

 The newest published taxa and newest record of Gesneriaceae from China before 31 December 2019 (15)

 Fig. 3. Petrocosmea weiyigangii F.Wen. A. A variety of leaves. B. Flower viewed from the top. C. Abaxial surfaces of calyx lobes. D. Calyx lobes, adaxial surfaces. E. Corolla , opened up to show stamens and staminodes. F. Pistil (Style, ovary and disc). G. Stamens with glabrous anthers and white pilose filaments. H. Mature dehisced capsule. (Photos: F. Wen).

The newest published taxa and newest record of Gesneriaceae from China before 31 December 2019 (15)

Fig. 4. Petrocosmea martinii (H.Lév.) H.Lév. A. Habitat. B. Habit, with author’s finger for scale. C. Plant in flower. D. Corolla viewed from the front. (Photos: F. Wen).

The newest published taxa and newest record of Gesneriaceae from China before 31 December 2019 (15)

Fig. 5. Distribution of Petrocosmea weiyigangii F. Wen (★), marked as ‘B’, and its relative, P. martini (H.Lév.) H.Lév. (in the elliptical area, marked as ‘A’) in China.