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

4. Begonia alveolata T. T. Yu, Bull. Fan Mem. Inst. Biol. n.s., 1: 121. 1948.

点叶秋海棠 dian ye qiu hai tang

Begonia pingbienensis C. Y. Wu.

Herbs, erect on upper part, ascending at base. Rhizome absent. Stems slender. Leaves cauline, asymmetric; stipules ovate-lanceolate, ca. 5 mm, membranous, pilose, apex acute; petiole 3-6 mm, densely villous; blade ovate, asymmetric, 4-6.5 × 3-5 cm, thin when dried, abaxially densely papillose, subglabrous or sparsely pubescent on veins, villous at junction between blade and petiole, adaxially sparsely hirsute, venation palmate-pinnate, 6-veined, base obliquely cordate, margin irregularly denticulate, apex acuminate. Inflorescences subglabrous; bracts caducous, apex acuminate. Staminate flowers: tepals 4, pinkish, glabrous, outer 2 elliptic or obovate, ca. 12 × 6 mm, inner 2 elliptic, ca. 6 × 2 mm; stamens numerous; filaments free. Pistillate flowers: tepals 5, subequal, 8-10 × 4-6 mm, glabrous; ovary 3-loculed, glabrous; placentae axile, bilamellate; styles 3, free; stigmas 2-cleft, spiraled. Capsules pendulous, unequally 3-winged; abaxial wing larger, triangular. Fl. Nov.

Forests, moist environments; 1000-1500 m. Yunnan (Pingbian) [Vietnam].

This species resembles Begonia morifolia but differs by its glabrous flowers and very shallowly lobed leaves.


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