石龙尾Limnophila sessiliflora
中文名（Chinese Name）：石龙尾
学名（Scientific Name）：Limnophila sessiliflora (Vahl) Blume
英文名（English Common Name）：Asian marshweed
别名（Chinese Common Name）：Ambulia sessiliflora (Vahl) Baill. ex Wettst. Limnophila taoyuanensis Yang et Yen Hottonia sessiliflora Vahl
异名（Synonym）：
科属（Family & Genus）：玄参科（Scrophulariaceae）石龙尾属
形态特征（Description）：多年生两栖草本。茎细长，沉水部分无毛或几无毛；气生部分长6-40厘米，简单或多少分枝，被多细胞短柔毛，稀几无毛。沉水叶长5-35毫米，多裂；裂片细而扁平或毛发状，无毛；气生叶全部轮生，椭圆状披针形，具圆齿或开裂，长5-18毫米，宽3-4毫米，无毛，密被腺点，有脉1-3条。花无梗或稀具长不超过1.5毫米之梗，单生于气生茎和沉水茎的叶腋；小苞片无或稀具一对长不超过1.5毫米的全缘的小苞片；萼长4-6毫米，被多细胞短柔毛，在果实成熟时不具凸起的条纹；萼齿长2-4毫米，卵形，长渐尖；花冠长6-10毫米，紫蓝色或粉红色。蒴果近于球形，两侧扁。花果期7月至次年1月。
分布（Distribution）：产广东、广西、福建、江西、湖南、四川、云南、贵州、浙江、江苏、安徽、河南、辽宁等省区。生于水塘、沼泽、水田或路旁、沟边湿处。朝鲜，日本及东南亚等地有也。
用途（Use）：
引自中国植物志英文版：FOC Vol. 18 Page 26
Limnophila sessiliflora (Vahl) Blume, Bijdr. 749. 1826.
石龙尾 shi long wei| Scrophulariaceae | Limnophila
Hottonia sessiliflora Vahl, Symb. Bot. 2: 35. 1791; Ambulia sessiliflora (Vahl) Baillon ex Wettstein; L. taoyuanensis Yang & Yen.
Perennials, amphibious. Submerged stems slender, long, glabrous or subglabrous. Aerial stems 6-40 cm, simple or sparsely branched, eglandular hairy, rarely subglabrous. Submerged leaves 0.5-3.5 cm, multiparted; segments flattened or capillary. Aerial leaves whorled; leaf blade elliptic-lanceolate, 5-18 X 3-4 mm, glabrous, densely glandular punctate, margin crenate to lobed; veins 1-3. Flowers sessile or rarely with a pedicel to 1.5 mm, solitary in axils of submerged and aerial leaves. Bracteoles absent or rarely present and to 1.5 mm. Calyx 4-6 mm, eglandular hairy, without raised veins in fruit; lobes 2-4 mm, ovate, apex narrowly acuminate. Corolla purple-blue to reddish, 6-10 mm. Capsule compressed, subglobose. Fl. and fr. Jul-Jan.
Ponds, swamps, rice fields, wet places along streams; below 1900 m. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Henan, Hunan, Jiangsu, Jiangxi, Liaoning, Sichuan, Taiwan, Yunnan, Zhejiang [Bhutan, India, Indonesia (Java), Japan, Korea, Malaysia, Myanmar, Nepal, Sikkim, Sri Lanka, Vietnam].
Limnophila trichophyllaLimnophilatrichophylla (Komarov) Komarov has been reported from NE China and Taiwan. From illustrations and the original description, the species is similar to L. sessiliflora, but we have not seen any specimens. The same is true for the recently described L. taoyuanensis (Bot. Bull. Acad. Sinica 38: 285-295. 1997).
（责任编辑：徐晔春）
学名（Scientific Name）：Limnophila sessiliflora (Vahl) Blume
英文名（English Common Name）：Asian marshweed
别名（Chinese Common Name）：Ambulia sessiliflora (Vahl) Baill. ex Wettst. Limnophila taoyuanensis Yang et Yen Hottonia sessiliflora Vahl
异名（Synonym）：
科属（Family & Genus）：玄参科（Scrophulariaceae）石龙尾属
形态特征（Description）：多年生两栖草本。茎细长，沉水部分无毛或几无毛；气生部分长6-40厘米，简单或多少分枝，被多细胞短柔毛，稀几无毛。沉水叶长5-35毫米，多裂；裂片细而扁平或毛发状，无毛；气生叶全部轮生，椭圆状披针形，具圆齿或开裂，长5-18毫米，宽3-4毫米，无毛，密被腺点，有脉1-3条。花无梗或稀具长不超过1.5毫米之梗，单生于气生茎和沉水茎的叶腋；小苞片无或稀具一对长不超过1.5毫米的全缘的小苞片；萼长4-6毫米，被多细胞短柔毛，在果实成熟时不具凸起的条纹；萼齿长2-4毫米，卵形，长渐尖；花冠长6-10毫米，紫蓝色或粉红色。蒴果近于球形，两侧扁。花果期7月至次年1月。
分布（Distribution）：产广东、广西、福建、江西、湖南、四川、云南、贵州、浙江、江苏、安徽、河南、辽宁等省区。生于水塘、沼泽、水田或路旁、沟边湿处。朝鲜，日本及东南亚等地有也。
用途（Use）：
引自中国植物志英文版：FOC Vol. 18 Page 26
Limnophila sessiliflora (Vahl) Blume, Bijdr. 749. 1826.
石龙尾 shi long wei| Scrophulariaceae | Limnophila
Hottonia sessiliflora Vahl, Symb. Bot. 2: 35. 1791; Ambulia sessiliflora (Vahl) Baillon ex Wettstein; L. taoyuanensis Yang & Yen.
Perennials, amphibious. Submerged stems slender, long, glabrous or subglabrous. Aerial stems 6-40 cm, simple or sparsely branched, eglandular hairy, rarely subglabrous. Submerged leaves 0.5-3.5 cm, multiparted; segments flattened or capillary. Aerial leaves whorled; leaf blade elliptic-lanceolate, 5-18 X 3-4 mm, glabrous, densely glandular punctate, margin crenate to lobed; veins 1-3. Flowers sessile or rarely with a pedicel to 1.5 mm, solitary in axils of submerged and aerial leaves. Bracteoles absent or rarely present and to 1.5 mm. Calyx 4-6 mm, eglandular hairy, without raised veins in fruit; lobes 2-4 mm, ovate, apex narrowly acuminate. Corolla purple-blue to reddish, 6-10 mm. Capsule compressed, subglobose. Fl. and fr. Jul-Jan.
Ponds, swamps, rice fields, wet places along streams; below 1900 m. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Henan, Hunan, Jiangsu, Jiangxi, Liaoning, Sichuan, Taiwan, Yunnan, Zhejiang [Bhutan, India, Indonesia (Java), Japan, Korea, Malaysia, Myanmar, Nepal, Sikkim, Sri Lanka, Vietnam].
Limnophila trichophyllaLimnophilatrichophylla (Komarov) Komarov has been reported from NE China and Taiwan. From illustrations and the original description, the species is similar to L. sessiliflora, but we have not seen any specimens. The same is true for the recently described L. taoyuanensis (Bot. Bull. Acad. Sinica 38: 285-295. 1997).
（责任编辑：徐晔春）
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