藻百年Exacum tetragonum Roxb.
藻百年Exacum tetragonum Roxb.
1.藻百年(中国高等植物图鉴)图版1:1-5
Exacum tetragonum Roxb. Hort. Bengal 10. 1814 nom. nud. et Fl. Ind. ed. 2: 398. 1832; D. Don in Trans. Linn. Soc. 17: 532. 1837; Griseb. Gen. Sp. Gent. 107. 1838 et in DC. Prodr. 9: 44. 1845; C. B. Clarke in Journ. Linn. Soc. Bot. 14: 424. 1875 et in Hook. t. Fl. Brit. Ind. 4: 95. 1883: Forbes et Hemsl. in Journ. Linn. Soc. Bot. 26: 122. 1890; Levl. Fl. Kouy-tcheou lll. 1914-1915; Marq. in Kew Bull. 1937: 439. 1937; Hara, Fl. E. Himal. 254. 1966;中国高等植物图鉴3: 412. 图4778. 1974; Hara, Chater et Williams, Enum. Fl. Pl. Nepal 3: 91. 1982.
一年生草本,高25-60厘米,全株光滑无毛。茎直立,黄绿色,四棱形,上部有分枝。叶对生,无柄,卵形至卵状披针形,长1-5厘米,宽0.8-2.5厘米,先端急尖,基部圆形,半抱茎,并向茎下延成翅,叶脉3-5条,在下面突起。聚伞花序顶生及腋生,组成圆锥状复聚伞花序;花梗黄绿色,长3-10毫米;花4数;花萼长5-6毫米,分裂至近基部,萼筒短,裂片卵形,先端尾尖;具宽的膜质边缘,中脉绿色,在背面呈龙骨状突起;花冠长15-17毫米,深裂,冠筒短,圆柱形,长4-5毫米,裂片椭圆形,长11-12毫米,先端尾尖,全缘;雄蕊着生于花冠裂片间弯缺处,与裂片互生,花丝细,线形,长1.5-2毫米,花药粗,圆柱形,长5.5-6.5毫米,顶孔开裂,子房宽椭圆形,长2.5-3毫米,花柱极长,线形,长10-12毫米,柱头小,2裂,裂片三角形。蒴果近球形,直径4-5毫米;种子多数,小,矩圆形,长0.7-1毫米,表面具小瘤状突起。花果期7-9月。
产云南、贵州、广西、广东、江西。生于草地、山坡路旁,海拔200-1500米。在尼泊尔、印度东部(模式标本产地)、锡金、不丹、缅甸、菲律宾、马来西亚也有分布。
《Flora of China》 Vol. 16 (1995)
Exacum tetragonum Roxburgh
藻百年 zao bai nian
Plants 20-100 cm tall. Stems erect, apically branched, 4angled. Leaves sessile, ovate-lanceolate to ovate, 1-5 × 0.8-2.5 cm, base rounded, nearly clasping, and decurrent into narrow wings on stem, apex acute; veins 3-5, abaxially prominent. Pedicel 3-10 mm. Calyx 5-6 mm; lobes ovate, margin broadly membranous, apex caudate, midvein keeled. Corolla mauve-blue to lilac, 1.5-2.5 cm; tube cylindric, 4-6 mm; lobes elliptic, 1.1-1.7 cm, margin entire, apex short acuminate. Filaments linear, 1.5-2 mm; anthers 5.5-6.5 mm. Style linear, 1-1.2 cm; stigma lobes orbicular. Capsules subglobose, 4-5 mm in diam. Seeds ellipsoid, 0.7-1 mm. Fl. and fr. Jul-Sep.
Roadsides, meadows; 200-1500 m. Guangdong, Guangxi, Guizhou, Jiangxi, Yunnan [Cambodia, India, Laos, Malaysia, Myanmar, Nepal, New Guinea, Philippines, Sikkim, Vietnam; Australia].
别名:四方草;藻百年草;
科名:龙胆科 Gentianaceae
属名:藻百年属 Exacum
1.藻百年(中国高等植物图鉴)图版1:1-5
Exacum tetragonum Roxb. Hort. Bengal 10. 1814 nom. nud. et Fl. Ind. ed. 2: 398. 1832; D. Don in Trans. Linn. Soc. 17: 532. 1837; Griseb. Gen. Sp. Gent. 107. 1838 et in DC. Prodr. 9: 44. 1845; C. B. Clarke in Journ. Linn. Soc. Bot. 14: 424. 1875 et in Hook. t. Fl. Brit. Ind. 4: 95. 1883: Forbes et Hemsl. in Journ. Linn. Soc. Bot. 26: 122. 1890; Levl. Fl. Kouy-tcheou lll. 1914-1915; Marq. in Kew Bull. 1937: 439. 1937; Hara, Fl. E. Himal. 254. 1966;中国高等植物图鉴3: 412. 图4778. 1974; Hara, Chater et Williams, Enum. Fl. Pl. Nepal 3: 91. 1982.
一年生草本,高25-60厘米,全株光滑无毛。茎直立,黄绿色,四棱形,上部有分枝。叶对生,无柄,卵形至卵状披针形,长1-5厘米,宽0.8-2.5厘米,先端急尖,基部圆形,半抱茎,并向茎下延成翅,叶脉3-5条,在下面突起。聚伞花序顶生及腋生,组成圆锥状复聚伞花序;花梗黄绿色,长3-10毫米;花4数;花萼长5-6毫米,分裂至近基部,萼筒短,裂片卵形,先端尾尖;具宽的膜质边缘,中脉绿色,在背面呈龙骨状突起;花冠长15-17毫米,深裂,冠筒短,圆柱形,长4-5毫米,裂片椭圆形,长11-12毫米,先端尾尖,全缘;雄蕊着生于花冠裂片间弯缺处,与裂片互生,花丝细,线形,长1.5-2毫米,花药粗,圆柱形,长5.5-6.5毫米,顶孔开裂,子房宽椭圆形,长2.5-3毫米,花柱极长,线形,长10-12毫米,柱头小,2裂,裂片三角形。蒴果近球形,直径4-5毫米;种子多数,小,矩圆形,长0.7-1毫米,表面具小瘤状突起。花果期7-9月。
产云南、贵州、广西、广东、江西。生于草地、山坡路旁,海拔200-1500米。在尼泊尔、印度东部(模式标本产地)、锡金、不丹、缅甸、菲律宾、马来西亚也有分布。
《Flora of China》 Vol. 16 (1995)
Exacum tetragonum Roxburgh
藻百年 zao bai nian
Plants 20-100 cm tall. Stems erect, apically branched, 4angled. Leaves sessile, ovate-lanceolate to ovate, 1-5 × 0.8-2.5 cm, base rounded, nearly clasping, and decurrent into narrow wings on stem, apex acute; veins 3-5, abaxially prominent. Pedicel 3-10 mm. Calyx 5-6 mm; lobes ovate, margin broadly membranous, apex caudate, midvein keeled. Corolla mauve-blue to lilac, 1.5-2.5 cm; tube cylindric, 4-6 mm; lobes elliptic, 1.1-1.7 cm, margin entire, apex short acuminate. Filaments linear, 1.5-2 mm; anthers 5.5-6.5 mm. Style linear, 1-1.2 cm; stigma lobes orbicular. Capsules subglobose, 4-5 mm in diam. Seeds ellipsoid, 0.7-1 mm. Fl. and fr. Jul-Sep.
Roadsides, meadows; 200-1500 m. Guangdong, Guangxi, Guizhou, Jiangxi, Yunnan [Cambodia, India, Laos, Malaysia, Myanmar, Nepal, New Guinea, Philippines, Sikkim, Vietnam; Australia].
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