The recently published new taxa and new records of Gesneriaceae from China before 31 December 2023 (13)

No. 13  GUO-HUI ZHOU RONG-HUI TU, ANG LIU & XUN-LIN YU

Oreocharis chenzhouensis, a new species of Gesneriaceae from southern Hunan, China

Phytotaxa 607 (3): 197–204

Abstract

Oreocharis chenzhouensis, a new species, is described and illustrated from southern Hunan, China. The new species resembles O. burtii and O. sinohenryi in leaf blade shape and indumentum of the plants, but readily differs from the latter two in its leaf blade with a cuneate and usually asymmetric base, abaxially glabrous corolla tube, narrowly triangular calyx lobes, and one or no staminode. Following the IUCN Red List Criteria, O. chenzhouensis is assessed as “Vulnerable”.

Original article link:https://doi.org/10.11646/phytotaxa.607.3.3

FIGURE 1. Oreocharis chenzhouensis. A. Plant with flowers and capsules. B. Frontview of flower. C. Side view of flower. D. Bottom view of flower. E. Opened corolla showing two stamens and one staminode. F. Pistils. G. Capsule. H. Calyx segments. I. Cross section of leaf blade. Drawn by Jing Tian.

FIGURE 2. Oreocharis chenzhouensis. A and B. Habitat. C. Habit. D. Inflorescence. E. Adaxial leaf surface. F. Flower in front view. G. Flower in side view. H. Mature capsules. I. Abaxial leaf surface. J. Opened corolla showing two stamens and pistil. K. Opened corolla showing two stamens, one staminode and pistil. L. Immature capsule

FIGURE 3. Holotype of Oreocharis chenzhouensis (Rong-Hui Tu & Yao-Nan Yin 17092101, CSFI).

FIGURE 4. Geographic distribution of Oreocharis chenzhouensis and its related taxa in China