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FOC | Family List | FOC Vol. 19 | Rubiaceae | Mussaenda

20. Mussaenda membranifolia Merrill, Philipp. J. Sci. 23: 267. 1923.

膜叶玉叶金花 mo ye yu ye jin hua

Climbing shrubs; branches terete, glabrous. Leaves opposite; petiole 3-30 mm, hispid to strigillose; blade drying membranous, oblanceolate, elliptic, or elliptic-oblong, 9-15 × 2.5-4.5 cm, both surfaces sparsely strigose with pubescence denser along veins abaxially, base obtuse to acute, apex long acuminate; secondary veins 6-9 pairs, tertiary venation visible, reticulate; stipules generally deciduous, triangular, 3-5 mm, strigose, deeply 2-lobed, lobes linear. Inflorescences laxly dichotomous, 10-12 × 10-13 cm, strigillose to glabrescent, pedunculate or apparently sessile and tripartite; peduncles 4.5-6 cm; bracts linear, ca. 3 mm; pedicels 0.5-1 mm. Flowers pedicellate (or borne on higher order inflorescence axes), biology not noted. Calyx glabrous; hypanthium portion subellipsoid, 2-2.5 mm; lobes linear, 3-4 mm, with 1 lobe on 1 flower per inflorescence expanded into calycophyll, blade ovate to elliptic, 3-7.5 × 2-5 cm, strigose along veins on both surfaces, base cuneate to obtuse, stipe ca. 22 mm, apex acute to subacuminate. Corolla white, slenderly salverform, outside sparsely strigose; tube ca. 32 mm, densely yellow clavate pubescent in throat; lobes lanceolate or ovate-lanceolate, ca. 4 mm, adaxially yellow papillose, acute to acuminate. Berry subglobose or ellipsoid, 10-13 × 5-7 mm, glabrous, calyx lobes caducous. Fl. Apr-Jun, fr. Aug-Oct.

● Humid sites in forests. Hainan.


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