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FOC | Family List | FOC Vol. 13 | Begoniaceae | Begonia

72. Begonia hymenocarpa C. Y. Wu, Acta Phytotax. Sin. 33: 256. 1995.

膜果秋海棠 mo guo qiu hai tang

Herbs, slender. Rhizomes poorly developed, 4-6 mm in diam. Stems erect, 25-50 cm tall, subglabrous. Leaves cauline; stipules membranous, caducous; petiole 3.5-8 cm, glabrous; blade narrowly ovate, asymmetric, 6-11 × 4.5-7 cm, membranous, sparsely hispidulous, venation palmate, 5-veined, base cordate, margin irregularly denticulate, apex shortly acuminate to shortly caudate. Inflorescences terminal or axillary, glabrous; bracts ovate-lanceolate, ca. 1.8 mm, margin ciliate. Staminate flowers: pedicel 4-7 mm; tepals 4, pink, abaxially hairy, outer 2 larger, broadly ovate, 8-9 × 10-12 mm, inner 2 smaller, ovate, 5-6 × 3-4 mm; stamens numerous; filaments 1.1-1.5 mm, free; anthers oblong, 0.9-1 mm. Pistillate flowers: tepals 5, unequal, glabrous or abaxially hairy; ovary glabrous, 3-loculed; placentae axile, bilamellate; styles 3, free; stigmas 2-cleft, spiraled. Capsule pendulous, ca. 1.4 cm, unequally 3-winged; abaxial wing ca. 6 × 5 mm; lateral wings smaller. Fl. Jul-Aug, fr. Sep.

● Forest margins, shaded moist environments; 500-700 m. Guangxi (Damiao Shan, Dayao Shan).


 

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