B. chuyunshanensis

Culture

Original Botanical Description or Link to

Five new species of Begonia (Begoniaceae) from Taiwan: Bot. Bull. Acad. Sin. 46:255-8, pl. 1-4. 2005: “Herbs, erect, perennial, succulent. Rhizomes poorly developed, sometimes entirely lacking, creeping. Stems often zigzag, glabrous, 40-85 cm tall, to 18 mm across. Stipules glabrous, caducous, lanceolate to ovate, to 21 mm long, 16 mm wide, margins entire, apex acuminate. Leaves sparingly scaberulous on both surfaces, oblique, ovate to narrowly ovate, 12-27 cm long, 5-14 cm wide, base cordate, margins irregularly serrulate or denticulate, often slight undulate, apex acuminate to cuspidate; venation palmatepinnate, veins 7-9; petiole glabrous, 6-30 cm long, to 8 mm across. Bracts in pairs, thickly papery, glabrous, caducous, narrowly ovate to ovate, to 23 mm long, 14 mm wide, apex acuminate, margins entire. Inflorescence 5-16 cm long, arising laterally from stem; peduncle erect to ascending, glabrous, to 13 cm long, 4 mm thick, flowers pendulous. Tepals white or very faintly pinkish. Staminate flowers: tepals 4, decussate, outer 2 broadly obovate to orbicular, 9-24 mm long, 7-21 mm wide, inner 2 oblanceolate to narrowly obovate, 7-18 mm long, 4-8 mm wide; stamens 98- 137, yellow, clavate, anthers narrowly oblong to oblanceolate, 2.9-3.2 mm long, 0.9-1.1 mm across, filaments 0.5-2.1 mm long. Carpellate flowers: tepals 5 (or 6), unequal to subequal, narrowly obovate to broadly obovate, largest 9-21 mm long, 8-18 mm wide, smallest 8-19 mm long, 4-9 mm wide; styles 3, yellow, 4.9-5.3 mm long, fused ca. 1 mm at base, each bifid; ovary nodding or somewhat pendent, ellipsoid, locules 3, longitudinally shallowly grooved between locules, 3-winged; placentae axile, bilamellate. Infructescence to 19 cm long, fruit-bearing stipes 12-25 mm long; capsules nodding, trigonous, unequally 3-winged, abaxial wing triangular, 18-24 mm long, 17-21 mm wide, lateral wings much narrower, 4-7 mm long, 17-21 mm wide. Seeds numerous, broadly ellipsoid, 0.32-0.34 mm long, 0.22-0.24 mm thick, chalazal end rotund, lip of seed nipple-shaped, micropylar end constricted.