No.5  BO PAN, BING-MOU WANG, JIN-YAN HE & FANG WEN

Primulina versicolor andP.alutaceaspp. nov. (Gesneriaceae), two new species with yellow flowers from northern Guangdong, China

Edinburgh Journal of Botany 73(1): 25 ‒37.

ABSTRACT

Two new Primulina species with yellow flowers, Primulina versicolor F.Wen, B.Pan & B.M.Wang and P. alutacea F.Wen, B.Pan & B.M.Wang (Gesneriaceae), from Guangdong, China are described and illustrated.

FIG. 1. Species of Primulina with yellow corollas. A, P. lutea; B, P. leprosa; C, P. pteropoda; D, P. danxiaensis; E, P. jiangyongensis. 1. Cymes and plant. 2. Corolla. 3. Habit (A–C, Photos by Fang Wen; D, Photos by Rui-Jiang Wang; E, Photos by Xun-Lin Yu).

FIG. 2. Primulina versicolor F.Wen, B.Pan & B.M.Wang, sp. nov. A, habit; B, outside surface of bracts; C, opened corolla showing stamens and staminodes; D, inside and outside surfaces of calyx lobes; E, pistil with and without calyx lobes; F, anthers and filaments; G, stigma [from Pan & Wen 090704, holo IBK].

FIG. 3. Primulina versicolor F.Wen, B.Pan & B.M.Wang, sp. nov. A, habit; B, cyme and frontal view of corolla; C, outside surface of bracts; D, top view of corolla; E, lateral view of corolla; F, opened corolla showing stamens, staminodes and colour variation of corolla; G, pistil with calyx lobes; H, pistil without calyx, showing disc; I, outside and inside surface of calyx lobes; J, stigma (Photos by Bi-Dan Lai).

FIG. 4. Primulina alutacea F.Wen, B.Pan & B.M.Wang, sp. nov. A, habit; B, bracts; C, opened corolla showing stamens and staminodes; D, pistil with and without calyx lobes showing appendage, degraded ovary; E, anthers; F, stigma [from Pan & Wen 090811, holo IBK].

FIG. 5. Primulina alutacea F.Wen, B.Pan & B.M.Wang, sp. nov. A, habit; B, bracts; C, frontal view of corolla; D, lateral view of corolla; E, top view of corolla; F, opened corolla showing stamens and staminodes; G, normal pistil with calyx lobes; H, abnormal pistil with calyx lobes showing appendage, degraded ovary; I, comparison of normal and abnormal pistil; J, glandular hairs on the outside surface of calyx lobes and ovary; K, stigma and style; L, glandular hairs on the outside of calyx lobe; M, glandular hairs on the outside of corolla tube (Photos by Bi-Dan Lai).

FIG. 6. The distributions of Primulina versicolor and P. alutacea (A/B) in North Guangdong, China.