中国淫羊藿属(小檗科)二新种  

Two new species of Epimedium (Berberidaceae) from China

作　　者：郭宝林[1] 何顺志[2] 钟国跃[3] 肖培根[1] 

机构地区：[1]中国医学科学院中国协和医科大学药用植物研究所,北京100094 [2]贵阳中医学院药学系,贵阳550002 [3]重庆中药研究院,重庆400065

出　　处：《植物分类学报》2007年第6期813-821,共9页Acta Phytotaxonomica Sinica

基　　金：国家自然科学基金项目(30270101)~~

摘　　要：报道了中国小檗科Berberidaceae淫羊藿属Epimedium两个新种,拟巫山淫羊藿Epimedium pseudowushanense B.L.Guo和青城山淫羊藿E.qingchengshanense G.Y.Zhong & B.L.Guo。拟巫山淫羊藿产于贵州黔东南州和广西北部,一直因小叶片相似被误定为巫山淫羊藿Epimedium wushanense T.S.Ying,但二者花的结构极其不同。拟巫山淫羊藿以花瓣距细和瓣片有皱褶而与产于湖北的直距淫羊藿E.mikinorii Stearn相类似,但距较短,长仅10–15mm,瓣片小,小叶片狭卵形至披针形,叶背面被稀疏的白色长毛,具白粉,花瓣紫红色或紫色,内轮萼片宽卵形或卵形,可以区别。青城山淫羊藿局限分布于四川都江堰市青城山后山,该种为淫羊藿属雄蕊显著伸长的种类,与川鄂淫羊藿E.fargesii Franch.相似,但花各部较川鄂淫羊藿为小,花瓣瓣片大而圆,不裂,花丝紫色可以区别。Two new species of the genus Epimedium （Berberidaceae） from China, E. pseudowushanense B. L. Guo and E. qingchengshanense G Y. Zhong ＆ B. L. Guo, are described and illustrated. Epimedium pseudowushanense, distributed from southeast of Guizhou to north of Guangxi, has been previously misidentified as E. wushanense T. S. Ying because of the similarity in their leaflet shape, but they are two distinct species because of the obvious difference in their flower structure. Epimedium pseudowushanense is possibly similar to E. mikinorii Steam, a species from Enshi, Hubei, in having petals with a very slender spur and a wrinkled lamina, but differs in the spur shorter, only 10-15 mm long, the lamina smaller, the leaflets narrowly ovate to lanceolate, sparsely white villose and glaucous on abaxial side, the petals purplish or purple with yellow lamina, and the inner sepals broadly ovate or ovate, 8-13 mm long. Epimedium qingchengshanense G Y. Zhong ＆ B. L. Guo, known only from Dujiangyan, Sichuan, is one of the Epimedium species with long filaments and most similar to E. fargesii FrancE, but differs by having smaller flowers, bigger, rounded petal lamina without lobes, and purple filaments.

关 键 词：淫羊藿属 拟巫山淫羊藿 青城山淫羊藿 小檗科 新种 中国 

分 类 号：Q949[生物学—植物学]