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Begonia howii

Description from Flora of China

Herbs, erect, 17-25 cm tall. Rhizomes elongate, 7-10 mm in diam. Leaves basal and cauline; stipules ovate-lanceolate, ca. 5 mm, glabrous, apex acuminate; petiole 3-19 cm, glabrous; blade obliquely ovate to broadly ovate, asymmetric, 7.5-16 × 5-10 cm, both surfaces glabrous, venation palmate, 6-veined, base truncate to slightly cordate, margin irregularly serrulate, apex acuminate or shortly caudate. Inflorescences glabrous; peduncle 1.5-1.8 cm; bracts oblong or oblong-ovate, 8-12 mm, glabrous, apex obtuse or acute. Staminate flowers: pedicel 1.2-1.5(-2) cm; tepals 4, glabrous, outer 2 ovate-oblong, 1.5-1.6 × ca. 1.3 cm, inner 2 oblong, 9-11 × ca. 5 mm; stamens numerous; filaments 1-1.5 mm; anthers oblong or obovoid-oblong, ca. 1.2 mm. Pistillate flowers: tepals unknown; ovary obovoid-oblong, ca. 1 cm × 6-7 mm, glabrous, 2-loculed; placentae axile, bilamellate; tepals 5; styles 2, free; stigmas 2-cleft, spiraled. Capsule nodding, unequally 3-winged. Fl. Jun-Jul.

● Forests, on rocks in valleys; 600-700 m. Hainan (Baoting, Wanning).


 

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