掌叶秋海棠Begonia hemsleyana Hook. f.
掌叶秋海棠Begonia hemsleyana Hook. f.
139. 掌叶秋海棠（中国高等植物图鉴）刺海棠、岩酸菇（思茅）
Begonia hemsleyana Hook. f. in Curtis′s Bot. M4g. 125: t. 7685. 1899; Chun et F. Chun in Sunyatsenia 4: 25. 1939; Irmsch. in Mitt. Inst. Allg. Bot. Hamburg 10: 537. 1939; Yu in Bull. Fan Mem. Inst. Biology, new ser. 1 (2): 122. 1948;中国高等植物图鉴2: 938, 图3607. 1972; 中国高等植物图鉴补编2: 536, 540, in clavi.1983; C. Y. Wu et al. Index Fl. Yunnan. 1: 350. 1984; L. B. Smith et al. in Smi thson. Contr. Bot. 60: 13, in clavi, 177, Pl. 4, fig. 1. 1986.
《Flora of China》 Vol. 13 (2007)
Begonia hemsleyana J. D. Hooker
掌叶秋海棠 zhang ye qiu hai tang
Herbs, 30-80 cm tall. Rhizomes short, stout, 3-11 mm in diam. Stems hairy. Leaves cauline, or basal and cauline; stipules ovate-lanceolate, 5-21 × 4-10 mm, abaxially hispidulous, apex acuminate and cuspidate; petiole 8-14 cm, sparsely hispidulous, subglabrous, or glabrous; blade palmately compound, leaflets 7(or 8), oblong-lanceolate or obovate-lanceolate 6-12 × 1.9-4 cm, abaxially sparsely hirsute, adaxially sparsely hirsute, base cuneate or broadly cuneate, margin remotely serrulate, apex acuminate or long caudate-acuminate. Inflorescences 3-18 cm, subglabrous; peduncle 4-7.5 cm; bracts lanceolate, 1.3-1.7 cm, outside and margin hairy, apex acuminate and cuspidate. Staminate flowers: pedicel 8-32 mm; tepals 4, pink, outer 2 broadly ovate or suborbicular, 1-1.8 × 0.8-1.7 cm, abaxially villous, inner 2 ovate, 5-16 × 4-12 mm; stamens numerous; filaments ca. 5 mm; anthers ovoid-globose, ca. 8 mm. Pistillate flowers: tepals 5, unequal, largest broadly ovate, 9-11 × 9-11 mm, abaxially villous, smallest orbicular, 9-12 × 8-11 mm; ovary glabrous, 2-loculed; placentae axile, bilamellate; styles 2, ca. 4.1 mm, fused at base; stigmas 2-cleft, spiraled. Capsule nodding, obovoid-globose or ellipsoid, 10-13 × 5-7 mm, unequally 3-winged; abaxial wing falcate, 1.5-2.1 cm, apex rounded; lateral wings ca. 3 mm. Fl. Dec, fr. Jun. 2n = 20, 22*.
Forests, valleys, shaded moist environments; 1000-1300 m. Guangxi, SE Yunnan [Vietnam].
别名：刺海棠;复叶秋海棠;鲁兴多;岩酸苔;
科名：秋海棠科 Begoniaceae
属名：秋海棠属 Begonia
139. 掌叶秋海棠（中国高等植物图鉴）刺海棠、岩酸菇（思茅）
Begonia hemsleyana Hook. f. in Curtis′s Bot. M4g. 125: t. 7685. 1899; Chun et F. Chun in Sunyatsenia 4: 25. 1939; Irmsch. in Mitt. Inst. Allg. Bot. Hamburg 10: 537. 1939; Yu in Bull. Fan Mem. Inst. Biology, new ser. 1 (2): 122. 1948;中国高等植物图鉴2: 938, 图3607. 1972; 中国高等植物图鉴补编2: 536, 540, in clavi.1983; C. Y. Wu et al. Index Fl. Yunnan. 1: 350. 1984; L. B. Smith et al. in Smi thson. Contr. Bot. 60: 13, in clavi, 177, Pl. 4, fig. 1. 1986.
《Flora of China》 Vol. 13 (2007)
Begonia hemsleyana J. D. Hooker
掌叶秋海棠 zhang ye qiu hai tang
Herbs, 30-80 cm tall. Rhizomes short, stout, 3-11 mm in diam. Stems hairy. Leaves cauline, or basal and cauline; stipules ovate-lanceolate, 5-21 × 4-10 mm, abaxially hispidulous, apex acuminate and cuspidate; petiole 8-14 cm, sparsely hispidulous, subglabrous, or glabrous; blade palmately compound, leaflets 7(or 8), oblong-lanceolate or obovate-lanceolate 6-12 × 1.9-4 cm, abaxially sparsely hirsute, adaxially sparsely hirsute, base cuneate or broadly cuneate, margin remotely serrulate, apex acuminate or long caudate-acuminate. Inflorescences 3-18 cm, subglabrous; peduncle 4-7.5 cm; bracts lanceolate, 1.3-1.7 cm, outside and margin hairy, apex acuminate and cuspidate. Staminate flowers: pedicel 8-32 mm; tepals 4, pink, outer 2 broadly ovate or suborbicular, 1-1.8 × 0.8-1.7 cm, abaxially villous, inner 2 ovate, 5-16 × 4-12 mm; stamens numerous; filaments ca. 5 mm; anthers ovoid-globose, ca. 8 mm. Pistillate flowers: tepals 5, unequal, largest broadly ovate, 9-11 × 9-11 mm, abaxially villous, smallest orbicular, 9-12 × 8-11 mm; ovary glabrous, 2-loculed; placentae axile, bilamellate; styles 2, ca. 4.1 mm, fused at base; stigmas 2-cleft, spiraled. Capsule nodding, obovoid-globose or ellipsoid, 10-13 × 5-7 mm, unequally 3-winged; abaxial wing falcate, 1.5-2.1 cm, apex rounded; lateral wings ca. 3 mm. Fl. Dec, fr. Jun. 2n = 20, 22*.
Forests, valleys, shaded moist environments; 1000-1300 m. Guangxi, SE Yunnan [Vietnam].