二齿香科科Teucrium bidentatum Hemsl.
二齿香科科Teucrium bidentatum Hemsl.
17. 二齿香科科 细沙虫草(贵州兴义)图版10:7-11
Teucrium bidentatum Hemsl. in Journ. Linn. Soc. Bot. 26: 312. 1890; Dunn in Notes Bot. Gard. Edinburgh 6: 192. 1915; Hand. -Mazz. Symb. Sin. 7: 912. 1936, p. p. quoad pl. Yunnan.; S. Chow in Act. Phytotax. Sin. 10(4): 345, pl. LXXIII, f. 7-11. 1965.——Teucrium bidentatum Hemsl. var. purpureum Diels in Engler, Bot. Jahrb. 29: 550. 1900——Kinostemon bidentatum (Hemsl.) Kudo in Trans. Nat. Hist. Soc. Formosa 19: 2. 1929, et in Mem. Fac. Sci. Agr. Taihoku Univ. 2: 299. 1929——Plectranthus hanceiformis Levl. Cat. Pl. Yunnan 141. 1915, fide Dunn e typo.
多年生草本。茎直立,不分枝或分枝,常具早年残存的茎基,基部近圆柱形,上部四棱形,无槽,高60-90厘米,绿色,分枝常近水平,具不明显的向下弯曲的微柔毛。叶柄长5-9毫米,被不明显的微柔毛;叶片卵圆形,卵圆状披针形呈披针形,长4-11厘米,宽1.5-4厘米,先端渐尖至尾状渐尖,基部楔形或阔楔形下延,边缘在中部以下全缘中部以上具3-4对粗锯齿,两面除中肋及侧脉被不明显微柔毛外无毛,下面具细乳突,侧脉4-6对,与中肋在两面明显隆起。轮伞花序具2花,在茎及短于叶的腋生短枝上组成假穗状花序,假穗状花序长1.5-4.5厘米,序轴上被微柔毛;苞片微小,卵圆状披针形,边缘被小缘毛,其余部近于无毛,与花梗等长或超过花梗;花梗长3毫米,被微柔毛或近无毛。花萼钟形,前方基部一面臌,长4.6毫米,宽4毫米,外面除基部被微柔毛外余部无毛,喉部内面具毛环,10脉,二唇形,上唇3齿,中齿极发达,扁圆形,宽达3.5毫米,侧齿近圆形,微小,常附于中齿基部的两侧,下唇与上唇同高,2齿,极合生,缺弯常不达下唇长的1/3,各齿均具发达的网状侧脉。花冠白色,长约1厘米,外面无毛,冠筒稍伸出,长约5毫米,宽1.8毫米,唇片与花冠筒成直角,中裂片极发达,近圆形,内凹,直径3毫米,先端圆,基部渐收缢,前方一对侧裂片长圆形,长1.2毫米,宽0.8毫米,后方一对侧裂片近圆形,长1.2毫米,宽1.5毫米。雄蕊超出花冠筒一倍,药室平叉分,肾形。花柱稍超出雄蕊,先端2浅裂。花盘小,盘状,全缘。子房球形,4浅裂。小坚果卵圆形,长1.2毫米,宽1毫米,黄棕色,具网纹,合生面为果长1/2。
产台湾,湖北西部,四川,贵州,广西北部及云南东北部;生于山地林下,海拔950-1300米。等模式标本采自湖北宜昌及四川峨眉山。
贵州兴仁用根配方入药,治痢疾及白斑。
越南北部(沙坝)的记录,据Doan的图未必是本种。
《Flora of China》 Vol. 17 (1994)
Teucrium bidentatum Hemsley
二齿香科科 er chi xiang ke ke
Kinostemon bidentatum (Hemsley) Kudo; Plectranthus hanceiformis H. Léveillé; Teucrium bidentatum Hemsley var. purpureum Diels.
Herbs erect, perennial. Stems 60-90 cm tall, sparsely retrorse puberulent; branches subhorizontal. Petiole 5-9 mm, puberulent; leaf blade ovate to lanceolate, 4-11 × 1.5-4 cm, glabrous except sparsely puberulent on midrib and veins, abaxially minutely papillate, base cuneate to broadly cuneate-decurrent, margin of apical half 3- or 4-serrate, apex acuminate to caudate-acuminate. Spikes 1.5-4.5 cm, puberulent; verticillasters 2-flowered; bracts ovate-lanceolate, glabrous except ciliate on margin, as long as or longer than pedicel. Pedicel ca. 3 mm, puberulent or subglabrous. Calyx campanulate, swollen in front at base, ca. 4.6 × 4 mm, glabrous except for puberulent base outside, pilose annulate at throat; middle tooth of upper lip oblate, to 3.5 mm wide, lateral teeth subcircular. Corolla white, ca. 1 cm, glabrous; tube slightly exserted, ca. 5 × 1.8 mm; middle lobe of limb subcircular, ca. 3 mm wide, basally constricted; anterior lateral lobes oblong, ca. 1.2 × 0.8 mm; posterior lateral lobes subcircular, ca. 1.2 × 1.5 mm. Stamens ca. 3 × as long as corolla tube. Nutlets yellow-brown, ovoid, ca. 1.2 × 1 mm, netted.
* Hilly forests; 1000-1300 m. Guangxi, Guizhou, Hubei, Sichuan, Taiwan, Yunnan
Used medicinally.
别名:四轮风;二齿香料;二齿香科;白花石蚕;细沙虫草;
科名:唇形科 Labiatae
属名:香科科属 Teucrium
17. 二齿香科科 细沙虫草(贵州兴义)图版10:7-11
Teucrium bidentatum Hemsl. in Journ. Linn. Soc. Bot. 26: 312. 1890; Dunn in Notes Bot. Gard. Edinburgh 6: 192. 1915; Hand. -Mazz. Symb. Sin. 7: 912. 1936, p. p. quoad pl. Yunnan.; S. Chow in Act. Phytotax. Sin. 10(4): 345, pl. LXXIII, f. 7-11. 1965.——Teucrium bidentatum Hemsl. var. purpureum Diels in Engler, Bot. Jahrb. 29: 550. 1900——Kinostemon bidentatum (Hemsl.) Kudo in Trans. Nat. Hist. Soc. Formosa 19: 2. 1929, et in Mem. Fac. Sci. Agr. Taihoku Univ. 2: 299. 1929——Plectranthus hanceiformis Levl. Cat. Pl. Yunnan 141. 1915, fide Dunn e typo.
多年生草本。茎直立,不分枝或分枝,常具早年残存的茎基,基部近圆柱形,上部四棱形,无槽,高60-90厘米,绿色,分枝常近水平,具不明显的向下弯曲的微柔毛。叶柄长5-9毫米,被不明显的微柔毛;叶片卵圆形,卵圆状披针形呈披针形,长4-11厘米,宽1.5-4厘米,先端渐尖至尾状渐尖,基部楔形或阔楔形下延,边缘在中部以下全缘中部以上具3-4对粗锯齿,两面除中肋及侧脉被不明显微柔毛外无毛,下面具细乳突,侧脉4-6对,与中肋在两面明显隆起。轮伞花序具2花,在茎及短于叶的腋生短枝上组成假穗状花序,假穗状花序长1.5-4.5厘米,序轴上被微柔毛;苞片微小,卵圆状披针形,边缘被小缘毛,其余部近于无毛,与花梗等长或超过花梗;花梗长3毫米,被微柔毛或近无毛。花萼钟形,前方基部一面臌,长4.6毫米,宽4毫米,外面除基部被微柔毛外余部无毛,喉部内面具毛环,10脉,二唇形,上唇3齿,中齿极发达,扁圆形,宽达3.5毫米,侧齿近圆形,微小,常附于中齿基部的两侧,下唇与上唇同高,2齿,极合生,缺弯常不达下唇长的1/3,各齿均具发达的网状侧脉。花冠白色,长约1厘米,外面无毛,冠筒稍伸出,长约5毫米,宽1.8毫米,唇片与花冠筒成直角,中裂片极发达,近圆形,内凹,直径3毫米,先端圆,基部渐收缢,前方一对侧裂片长圆形,长1.2毫米,宽0.8毫米,后方一对侧裂片近圆形,长1.2毫米,宽1.5毫米。雄蕊超出花冠筒一倍,药室平叉分,肾形。花柱稍超出雄蕊,先端2浅裂。花盘小,盘状,全缘。子房球形,4浅裂。小坚果卵圆形,长1.2毫米,宽1毫米,黄棕色,具网纹,合生面为果长1/2。
产台湾,湖北西部,四川,贵州,广西北部及云南东北部;生于山地林下,海拔950-1300米。等模式标本采自湖北宜昌及四川峨眉山。
贵州兴仁用根配方入药,治痢疾及白斑。
越南北部(沙坝)的记录,据Doan的图未必是本种。
《Flora of China》 Vol. 17 (1994)
Teucrium bidentatum Hemsley
二齿香科科 er chi xiang ke ke
Kinostemon bidentatum (Hemsley) Kudo; Plectranthus hanceiformis H. Léveillé; Teucrium bidentatum Hemsley var. purpureum Diels.
Herbs erect, perennial. Stems 60-90 cm tall, sparsely retrorse puberulent; branches subhorizontal. Petiole 5-9 mm, puberulent; leaf blade ovate to lanceolate, 4-11 × 1.5-4 cm, glabrous except sparsely puberulent on midrib and veins, abaxially minutely papillate, base cuneate to broadly cuneate-decurrent, margin of apical half 3- or 4-serrate, apex acuminate to caudate-acuminate. Spikes 1.5-4.5 cm, puberulent; verticillasters 2-flowered; bracts ovate-lanceolate, glabrous except ciliate on margin, as long as or longer than pedicel. Pedicel ca. 3 mm, puberulent or subglabrous. Calyx campanulate, swollen in front at base, ca. 4.6 × 4 mm, glabrous except for puberulent base outside, pilose annulate at throat; middle tooth of upper lip oblate, to 3.5 mm wide, lateral teeth subcircular. Corolla white, ca. 1 cm, glabrous; tube slightly exserted, ca. 5 × 1.8 mm; middle lobe of limb subcircular, ca. 3 mm wide, basally constricted; anterior lateral lobes oblong, ca. 1.2 × 0.8 mm; posterior lateral lobes subcircular, ca. 1.2 × 1.5 mm. Stamens ca. 3 × as long as corolla tube. Nutlets yellow-brown, ovoid, ca. 1.2 × 1 mm, netted.
* Hilly forests; 1000-1300 m. Guangxi, Guizhou, Hubei, Sichuan, Taiwan, Yunnan
Used medicinally.
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