美丽秋海棠Begonia algaia L. B. Smith et D. C. Wasshausen
美丽秋海棠Begonia algaia L. B. Smith et D. C. Wasshausen
134.美丽秋海棠(中国高等植物图鉴)裂叶秋海棠、虎爪龙
Begonia algaia L. B. Smith et D. C. Wasshausen in Phytologia 52: 441. 1981; L. B. Smith et al. in Smithson. Contr. Bot. 60: 19, in clavi, 137, Pl. 5, fig. 29. 1986. ——B. calophylla Irmsch. in Mitt. Inst. Allg. Bot. Hamburg 6: 351. 1927, et 10: 540. 1939; et in Hand. -Mazz. Symb. Sin. 7 (2): 385. 1931; 中国高等植物图鉴2: 940, 图3610. 1972, non Gilg ex Engl. 1921.
多年生柔弱草本。根状茎长4-11厘米,直径5-8毫米,红褐色,粗糙,节密,生出多数长短不等的纤维状之根。茎短缩。基生叶具长柄;叶片轮廓宽卵形至长圆形,长10-20厘米,宽9-19 (-21)厘米,先端尾状长渐尖或长渐尖,基部心形至深心形略偏斜,全边具疏而大小不等的三角形浅齿,齿尖带短芒,通常6(-8)中裂或略过之,中间3裂片再中裂,裂片披针形至卵状披针形,基部楔形,下部两侧裂片通常再浅裂,裂片三角状卵形,先端短渐尖,上面深绿色,散生粗柔毛,下面淡绿色,沿脉被短疏柔毛,掌状6(-8)条脉,至分裂处以上呈羽状脉;叶柄长13-26厘米,柔弱,有棱,被锈褐色卷曲长毛,向顶端逐渐加密;托叶早落。花葶高17-27厘米,疏被锈褐色卷曲毛;花通常带白的玫瑰色,4朵,呈二歧聚伞状;苞片长圆状卵形,长4-5毫米,先端急尖;雄花:花梗长4-4.5厘米,无毛,花被片4,外面2枚,宽卵形,长2-2.7厘米,近等宽或稍宽,先端圆,外面中部散生长柔毛,内面2枚倒卵状长圆形,长2-2.6厘米,宽约1厘米,先端钝,无毛;雄蕊多数,花丝长1.8-2.2厘米,基部合生,花药广椭圆形,长1.7-2.2毫米,药隔突出,先端钝;雌花:花梗长4-5厘米,无毛;花被片5,不等大,外面的宽卵形,长约2.5厘米,宽约2.2厘米,先端钝,内面倒卵形,长约2厘米,宽约7毫米,先端钝;子房长圆形,长约10毫米,直径约5毫米,无毛,2室,每室胎座具2裂片,花柱2,长8-9毫米,近中部2裂,柱头外向螺旋状扭曲,并带刺状乳突。蒴果下垂;梗长约5厘米,无毛;轮廓卵球形,长约1.2厘米,直径约9毫米,具3极不相等之翅,大的近直三角形,长约13厘米,宽8-11毫米,先端圆,有纵纹,无毛,小的半圆形,长3-5毫米,上部圆,无毛;种子极多数,小,长圆形,淡褐色,平滑。花期6月开始,果期8月。
产江西(安福、上犹、遂川、井冈山、永新、武功山)。生于山谷水沟边阴湿处、山地灌丛中石壁上和河畔或阴山坡林下,海拔320-800米。模式标本采自吉安和宁都之间。
《Flora of China》 Vol. 13 (2007)
Begonia algaia L. B. Smith & Wasshausen
美丽秋海棠 mei li qiu hai tang
Begonia calophylla Irmscher, Mitt. Inst. Allg. Bot. Hamburg 6: 351. 1927, not Gilg ex Engler (1921).
Herbs, rhizomatous. Rhizomes elongate, 5-8 mm in diam. Stems short. Leaves mostly basal; stipules caducous; petiole 13-26 cm, rusty villous; blade broadly ovate to oblong, slightly asymmetric, 10-20 × 9-19(-21) cm, sparsely pubescent, venation palmate, 6(-8)-veined, base slightly obliquely cordate, margin remotely serrate, distinctly lobed, divided to ca. 1/2 of leaf length; lobes caudate-acuminate at apex; lobules present. Inflorescences 17-27 cm tall, sparsely rusty villous; bracts oblong-ovate, 4-5 mm, villous, apex acute. Staminate flowers: pedicel 4-4.5 cm; tepals 4, pinkish, outer 2 broadly ovate, 2-2.7 cm, outside villous, inner 2 obovate-oblong, 2-2.6 × ca. 1 mm; stamens numerous; filaments fused at base; anthers oval. Pistillate flowers: pedicel 4-5 cm; ovary oblong, ca. 10 × 5 mm, glabrous; placentae axile, bilamellate; tepals 5, unequal, obovate to broadly ovate, 2-2.5 × 0.7-2.2 cm, outside villous; styles 2, fused to halfway; stigmas 2-cleft, spiraled. Capsule nodding, ca. 1.2 × 9 mm, unequally 3-winged; abaxial wing larger, triangular. Fl. Jul-Aug.
● Forests or scrubby vegetation, moist environments by streams; 300-800 m. Jiangxi.
Very similar to Begonia pedatifida, this species can only be distinguished by its shallowly divided leaves and cordate leaf bases.
别名:裂叶秋海棠;虎爪龙;
科名:秋海棠科 Begoniaceae
属名:秋海棠属 Begonia
《中国植物志》第52(1)卷261页
134.美丽秋海棠(中国高等植物图鉴)裂叶秋海棠、虎爪龙
Begonia algaia L. B. Smith et D. C. Wasshausen in Phytologia 52: 441. 1981; L. B. Smith et al. in Smithson. Contr. Bot. 60: 19, in clavi, 137, Pl. 5, fig. 29. 1986. ——B. calophylla Irmsch. in Mitt. Inst. Allg. Bot. Hamburg 6: 351. 1927, et 10: 540. 1939; et in Hand. -Mazz. Symb. Sin. 7 (2): 385. 1931; 中国高等植物图鉴2: 940, 图3610. 1972, non Gilg ex Engl. 1921.
多年生柔弱草本。根状茎长4-11厘米,直径5-8毫米,红褐色,粗糙,节密,生出多数长短不等的纤维状之根。茎短缩。基生叶具长柄;叶片轮廓宽卵形至长圆形,长10-20厘米,宽9-19 (-21)厘米,先端尾状长渐尖或长渐尖,基部心形至深心形略偏斜,全边具疏而大小不等的三角形浅齿,齿尖带短芒,通常6(-8)中裂或略过之,中间3裂片再中裂,裂片披针形至卵状披针形,基部楔形,下部两侧裂片通常再浅裂,裂片三角状卵形,先端短渐尖,上面深绿色,散生粗柔毛,下面淡绿色,沿脉被短疏柔毛,掌状6(-8)条脉,至分裂处以上呈羽状脉;叶柄长13-26厘米,柔弱,有棱,被锈褐色卷曲长毛,向顶端逐渐加密;托叶早落。花葶高17-27厘米,疏被锈褐色卷曲毛;花通常带白的玫瑰色,4朵,呈二歧聚伞状;苞片长圆状卵形,长4-5毫米,先端急尖;雄花:花梗长4-4.5厘米,无毛,花被片4,外面2枚,宽卵形,长2-2.7厘米,近等宽或稍宽,先端圆,外面中部散生长柔毛,内面2枚倒卵状长圆形,长2-2.6厘米,宽约1厘米,先端钝,无毛;雄蕊多数,花丝长1.8-2.2厘米,基部合生,花药广椭圆形,长1.7-2.2毫米,药隔突出,先端钝;雌花:花梗长4-5厘米,无毛;花被片5,不等大,外面的宽卵形,长约2.5厘米,宽约2.2厘米,先端钝,内面倒卵形,长约2厘米,宽约7毫米,先端钝;子房长圆形,长约10毫米,直径约5毫米,无毛,2室,每室胎座具2裂片,花柱2,长8-9毫米,近中部2裂,柱头外向螺旋状扭曲,并带刺状乳突。蒴果下垂;梗长约5厘米,无毛;轮廓卵球形,长约1.2厘米,直径约9毫米,具3极不相等之翅,大的近直三角形,长约13厘米,宽8-11毫米,先端圆,有纵纹,无毛,小的半圆形,长3-5毫米,上部圆,无毛;种子极多数,小,长圆形,淡褐色,平滑。花期6月开始,果期8月。
产江西(安福、上犹、遂川、井冈山、永新、武功山)。生于山谷水沟边阴湿处、山地灌丛中石壁上和河畔或阴山坡林下,海拔320-800米。模式标本采自吉安和宁都之间。
《Flora of China》 Vol. 13 (2007)
Begonia algaia L. B. Smith & Wasshausen
美丽秋海棠 mei li qiu hai tang
Begonia calophylla Irmscher, Mitt. Inst. Allg. Bot. Hamburg 6: 351. 1927, not Gilg ex Engler (1921).
Herbs, rhizomatous. Rhizomes elongate, 5-8 mm in diam. Stems short. Leaves mostly basal; stipules caducous; petiole 13-26 cm, rusty villous; blade broadly ovate to oblong, slightly asymmetric, 10-20 × 9-19(-21) cm, sparsely pubescent, venation palmate, 6(-8)-veined, base slightly obliquely cordate, margin remotely serrate, distinctly lobed, divided to ca. 1/2 of leaf length; lobes caudate-acuminate at apex; lobules present. Inflorescences 17-27 cm tall, sparsely rusty villous; bracts oblong-ovate, 4-5 mm, villous, apex acute. Staminate flowers: pedicel 4-4.5 cm; tepals 4, pinkish, outer 2 broadly ovate, 2-2.7 cm, outside villous, inner 2 obovate-oblong, 2-2.6 × ca. 1 mm; stamens numerous; filaments fused at base; anthers oval. Pistillate flowers: pedicel 4-5 cm; ovary oblong, ca. 10 × 5 mm, glabrous; placentae axile, bilamellate; tepals 5, unequal, obovate to broadly ovate, 2-2.5 × 0.7-2.2 cm, outside villous; styles 2, fused to halfway; stigmas 2-cleft, spiraled. Capsule nodding, ca. 1.2 × 9 mm, unequally 3-winged; abaxial wing larger, triangular. Fl. Jul-Aug.
● Forests or scrubby vegetation, moist environments by streams; 300-800 m. Jiangxi.
Very similar to Begonia pedatifida, this species can only be distinguished by its shallowly divided leaves and cordate leaf bases.