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伞花老鹳草Geranium umbelliforme

时间:2013-09-11 11:51来源:未知 作者:徐晔春 点击:
中文名 ( Chinese Name ): 伞花老鹳草 学名 ( Scientific Name ): Geranium umbelliforme Franch. 英文名( English Common Name ): 别名( Chinese Common Name ): 白隔山消 异名( Synonym ): 科属( Family Genus ): 牻牛儿苗科(Geraniace
中文名Chinese Name):伞花老鹳草
学名Scientific Name):Geranium umbelliforme Franch.
英文名(English Common Name):
别名(Chinese Common Name):白隔山消
异名(Synonym):
科属(Family & Genus):牻牛儿苗科(Geraniaceae)老鹳草属
形态特征(Description):多年生草本,高30-40厘米。根茎短粗,木质化。茎丛生,直立,上部具1-2分枝,密被开展的灰白色糙毛和腺毛。叶互生,上部偶有对生;托叶披针形,长10毫米,宽2-3毫米,外被柔毛;基生叶和茎下部叶具长柄,柄长为叶片的4-5倍,上部叶柄与叶片近等长,密被开展的腺毛;叶片肾圆形,有时上部叶片五角形,长2.5-3.5厘米,宽4-7厘米,5-7深裂,裂片倒卵状宽楔形,顶部通常向下3裂,小裂片通常具3-4齿状裂片,先端急尖,具不明显尖头,表面被糙伏毛,背面通常仅沿脉被糙毛。花序伞形状,明显长于叶,通常每3个总花梗簇生分枝先端,似复伞形花序;总花梗密被糙毛和开展的腺毛;花梗与总花梗相似,长为花的2-4倍;萼片卵状椭圆形,长5-6毫米,宽约2毫米,先端具1毫米短尖头,外被开展腺毛;花瓣紫红色,倒长卵形,长为萼片的2倍,先端圆形,基部楔形,下部边缘具睫毛;雄蕊与萼片近等长,中部以下扩展,外被疏柔毛,花药棕褐色;子房被短柔毛,花柱分枝棕褐色。蒴果长约2厘米,被白色糙毛。花期6-8月,果期8-10月。
分布(Distribution):分布于云南和四川。生于海拔3000米左右的山地草坡。
用途(Use):
引自中国植物志英文版FOC Vol. 11 Page 8, 12    
Geranium umbelliforme Franchet, Bull. Soc. Bot. France. 33: 443. 1887.
伞花老鹳草 san hua lao guan cao| Geraniaceae  | Geranium
Perennials. Rootstock ± vertical, 6-11 mm in diam., not tuberculate, without thickened roots. Stem 28-45 cm tall, erect, not rooting at nodes, with 0.3-3.9 mm patent nonglandular trichomes and 0.7-1.8 mm patent glandular trichomes. Stipules ovate, distinct. Leaves alternate; petiole with 0.4-3.9 mm patent nonglandular trichomes and 0.6-1.8 mm patent glandular trichomes; leaf blade 3.7-8.4 cm, palmately cleft, ratio of main sinus/middle segment length = 0.66-0.73, pilose with ± appressed nonglandular and glandular trichomes; segments 5 or 7, obtriangular, 0.8-1.4 cm wide at base, 7-15-lobed in distal half, ratio of second sinus/middle segment length = 0.16-0.19. Cymules in loose umbel-like aggregates at apex of each branch, (2 or)3(or 4)-flowered; peduncle 2.5-6.7 cm. Pedicel 0.6-3.5 cm, with 0.4-3.5 mm patent nonglandular trichomes and 0.6-1.8 mm patent glandular trichomes; bracteoles linear-lanceolate. Sepals 6.1-7.6 mm, mucro 0.7-1.4 mm, ratio of mucro/sepal length = 0.11-0.18, outside with 0.3-3.2 mm patent nonglandular trichomes and 0.6-1.6 mm patent glandular trichomes, inside glabrous. Petals pinkish, 1.3-1.5 cm, erect to patent, both surfaces basally with trichomes but mainly inside, margin basally ciliate, apex rounded or retuse. Staminal filaments whitish, lanceolate, abaxially pilose and proximal half ciliate, trichomes 0.3-0.9 mm; anthers brownish, 0.9-1.6 mm. Nectaries 5, hemispheric, glabrous. Stigma reddish. Fruit ca. 1.8 cm, erect when immature; mericarps reticulate, without a basal callus, with 0.1-0.2 mm ± appressed nonglandular trichomes; rostrum ca. 1.2 cm, with a ca. 2 mm narrowed apex; stigmatic remains ca. 1.5 mm. Seeds not known. Fl. Jun-Aug, fr. Aug-Oct.
● Meadows in forest zone; 2800-3200 m. S Sichuan, NW Yunnan.
This species somewhat resembles Geranium polyanthes, although its inflorescence is more lax because cymules always have a well-developed peduncle. Differences in rostrum shape should be checked with more fruiting material of G. umbelliforme, because only one mature fruit has been studied. Ovate stipules are shared with G. polyanthes and G. wardii Yeo. The latter is an endemic from C Myanmar and has opposite leaves.


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