栏目

昌感秋海棠Begonia cavaleriei Lévl.

昌感秋海棠Begonia cavaleriei Lévl.

别名:红孩儿;昌咸秋海棠;盾叶秋海棠;岩蜈蚣;爬岩龙;爬地龙;野海棠;

科名:秋海棠科 Begoniaceae

属名:秋海棠属 Begonia

《中国植物志》第52(1)卷154页
  21.昌感秋海棠(海南植物志)盾叶秋海棠(高等植物图鉴)
  Begonia cavaleriei Levl. in Fedde, Repert. Sp. Nov. 7: 20. 1909, et in Fl. Kouy Techeou 46. 1914; Gagnep. in Lecomte, Fl. Gen. Indo-Chine 2: 1097. in clavi 1921; Irmsch. in Mitt. Inst. Allg. Bot. Hamburg 6: 354. 1927, et in l. c. 10: 512. 1939;海南植物志1: 489. 1964;中国高等植物图鉴2: 944. 1972, excl. fig .3618; Lauener in Not. Bot. Gard. Edinb. 31 (3): 432. 1972; 中国高等植物图鉴补编2: 534, 542. in clavi. 1983; C. Y. Wu et al. Index Fl. Yunnan. 1: 349. 1984; L. B. Smith et al. in Smithson. Contr. Bot. 60: 10, in clavi, 149, Pl. 3, fig. 21. 1986;贵州植物志4: 255. 1989, excl. tab.; 广西植物志1: 725,图版293, 图7. 1991. ——B. esquirolii Levl. in Bull. Acad. Geogr. Bot. 22: 228. 1912, et in Fl. Kouy-Tcheou 40. 1914; Merr. et Metc. in Lingn. Sci. Journ. 16 (3): 395. 1937. ——B. nymphaei-folia Yu in Bull. Fan Mem. Inst. Biology new ser. 1 (2): 127. 1948 (ut nymphaeafolia) ; L. B. Smith et al. Smithson. Contr. Bot. 60: 206. 1986, syn. nov. ex typo. ——B. cazxzleriei Levl. var. pinfaensis Levl. in Fedde, Repert. Sp. Nov. 7: 20. 1909, p. p. quoad syntypi Cavalerie 908, et Fl. Kouy-Tcheou 46. 1914.
  多年生草本。根状茎伸长,匍伏,长圆柱状,表面不平整,呈结节状或似念珠状,长3-7(-14)厘米,直径5-10毫米,节明显,被膜质褐色的鳞片和粗壮细长纤维状之根。叶盾形,全部基生,具长柄;叶片厚纸质,两侧略不相等,轮廓近圆形,长8-15(22)厘米,宽5-13 (-19)厘米,先端渐尖至长渐尖,基部略偏呈圆形,窄侧宽1.5-4.8厘米,宽侧宽3-7厘米,边全缘常带浅波状,上面褐绿色,被极短之毛,老时脱落,下面淡褐绿色,近无毛,脉自叶柄顶端放射状发出,6-8条,下面粗而明显,并呈淡红褐色,中部以上分叉;叶柄长7-25厘米,有棱,无毛;托叶早落。花葶高约20厘米,有棱,无毛;花淡粉红色,数朵,呈聚伞状;雄花:花梗长2-3厘米,无毛;苞片倒卵形,长约8毫米,宽约5毫米,无毛;花被片4,外面2枚宽卵形至卵形,长1.7-2厘米,宽1.3-1.5厘米,先端圆,外面无毛,内面2枚长圆形,长约1.2厘米,宽约5毫米,先端圆钝;雄蕊多数,花丝长1.5-2厘米,花药倒卵形至长圆形,长约1毫米,先端圆或微凹;雌花:花被片3,外面2枚宽卵形或近圆形,长17-18毫米,宽15-17毫米,先端圆钝,无毛,内面1枚,长圆形,长约8.5毫米,宽约4毫米,先端圆钝;子房长圆形,长约2毫米,无毛,3室,中轴胎座,每室胎座具2裂片,具不等3翅,花柱3,仅基部合生,上部分枝,柱头外向膨大,螺旋状扭曲,并带刺状乳头。蒴果下垂,果梗长约3.5厘米,无毛;轮廓长圆形,长约2.9毫米,无毛,具不等3翅,翅呈新月形,大的长约7毫米,小的长仅2-3毫米,均无毛;种子多数,小,淡褐色,光滑。花期5-7月,果期7月开始。
  产贵州(安龙、亨册、荔波、独山)、云南(富宁、西畴、麻栗坡)、广西(南丹、德保、那坡)。生于山沟阴湿处岩石上、山脚阴密林下、山谷潮湿处密林下,海拔700-1000米。模式标本采自贵州独山。
  海南(昌江)有记录,但未见标本。

《Flora of China》 Vol. 13 (2007)
Begonia cavaleriei  H. Léveillé
昌感秋海棠   chang gan qiu hai tang
Begonia cavaleriei var. pinfaensis H. Léveillé; B. esquirolii H. Léveillé; B. nymphaeifolia T. T. Yu.
Herbs, rhizomatous. Rhizomes elongate, 5-15 mm in diam. Leaves basal; stipules caducous, broadly ovate to reniform, 8-12 × 8-10 mm; petiole 7-25 cm, glabrous; blade peltate, nearly symmetric, ovate or broadly elliptic, 8-15(-22) × 5-13(-19) cm, thickly papery, glabrous, venation palmate, base obtuse, margin slightly repand, apex acuminate to caudate. Inflorescences to 30 cm tall, glabrous; bracts reniform to fan-shaped, 8-15 × 12-16 mm, glabrous, apex emarginate; flowers fragrant. Staminate flowers: pedicel ca. 1 cm; tepals 4, white to pinkish, outer 2 broadly ovate to ovate, 8-20 × 9-15 mm, glabrous, inner 2 oblong, 1.2-4.1 × 4.4-7.1 mm; stamens 58-72; filaments free, 0.7-2 mm; anthers obovoid to oblong, 0.7-1.1 mm, apex rounded or slightly emarginate. Pistillate flowers: pedicel 2-3 cm; tepals 3, outer 2 broadly ovate or suborbicular, 1.1-1.8 × 1.4-1.7 cm, glabrous, inner 1 oblong, 7.8-8.5 × ca. 4 mm; ovary oblong, to 2 mm, glabrous, 3-loculed; placentae axile, bilamellate; styles 3, to 4.6 mm, fused at base; stigmas 2-cleft, spiraled. Capsule nodding, oblong, to 2.9 mm, unequally 3-winged; adaxial wing larger, lunate, 7-8 mm; lateral wings smaller. Fl. May-Jul, fr. Jul. 2n = 30*.
Forests, on limestone rocks; 700-1300(-1800) m. Guangxi, Guizhou, Yunnan [Vietnam].

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