24. Mussaenda pingbianensis C. Y. Wu ex H. H. Hsue & H. Wu, Acta Phytotax. Sin. 24: 233. 1986.
屏边玉叶金花 ping bian yu ye jin hua
Shrubs, ca. 3 m tall; branchlets glabrous. Leaves opposite; petiole ca. 6 mm, sparsely appressed pubescent; blade drying papery, adaxially shiny green, abaxially pale, elliptic or ovate, 7-8.5 × 2.5-3.2 cm, adaxially glabrous, abaxially pubescent along veins, base cuneate, apex acuminate; secondary veins ca. 7 pairs; stipules caducous to persistent, ovate, ca. 3.5 mm, pubescent, deeply 2-lobed, lobes narrowly triangular. Inflorescences congested-cymose, ca. 6 × 10 cm, many flowered, densely pubescent, sessile and tripartite or pedunculate; peduncles 1-2 cm; bracts lanceolate, 8-12 mm, densely pubescent. Flowers subsessile, biology not noted. Calyx sparsely pubescent; hypanthium portion turbinate, ca. 3 mm; lobes linear to narrowly triangular, ca. 8.5 mm, with 1 lobe in ca. 4 flowers per inflorescence expanded into white calycophyll, blade ovate to obovate, 5.5-6 cm, base obtuse to acute, stipe 10-14 mm, apex obtuse to shortly acuminate. Corolla orange to orange-red, salverform, outside sparsely to densely pubescent; tube ca. 14 mm, inside densely yellow clavate pubescent in upper part; lobes ovate, ca. 2.5 mm, adaxially densely yellow papillose, acuminate to mucronate. Berry unknown. Fl. May.
● Valleys. SE Yunnan.
The protologue described the stipules as caducous, but the protologue figure showed them as persistent. The specific epithet was written as "pingpienensis" by H. H. Hsue and H. Wu (in FRPS 71(1): 299. 1999), but it was originally published with the spelling above.