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題名 | Sinosenecio Albonervius (Asteraceae), a New Species from Hunan and Hubei, China=中國湖南和湖北產蒲兒根屬一新種:白脈蒲兒根 |
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作者姓名(中文) | 劉瑩; 張代貴; 楊親二; | 書刊名 | Botanical Studies |
卷期 | 52:3 2011.07[民100.07] |
頁次 | 頁359-365 |
分類號 | 377.2215 |
關鍵詞 | 菊科; 染色體數目; 核型; 千里光族; 白脈蒲兒根; Asteraceae; Chromosome number; Karyotype; Senecioneae; Sinosenecio albonervius; |
語文 | 英文(English) |
中文摘要 | 本文描述了中國湖南、湖北產蒲兒根屬一新種:白脈蒲兒根(Sinosenecio albonervius Y. Liu & Q. E. Yang)。其體細胞染色體數目為2n = 48。核型公式為2n = 42m + 2sm + 4st。本新種在體態、葉7-9裂和瘦果無冠毛方面與鄂西蒲兒根(S. palmatisectus C. Jeffrey & Y. L. Chen)相似,但以葉片7-9淺裂至1/4-1/3、裂片三角形、不光亮、具白色葉脈、有柔毛、舌狀花9-13而與後者相區別。本文提供了白脈蒲兒根的彩色圖版、線繪圖、花部微觀性狀的光鏡照片、地理分佈圖以及鄂西蒲兒根的彩色圖版。 |
英文摘要 | Sinosenecio albonervius Y. Liu & Q. E. Yang, a new species from Hunan and Hubei, China, is described and illustrated. Its chromosome number (2n = 48) is reported here. Its karyotype is formulated as 2n = 42m + 2sm + 4st. This new species is similar to S. palmatisectus C. Jeffrey & Y. L. Chen in the posture, the palmately-divided leaves and the epappose achenes, but differs in its leaves shallowly 7-9-palmatilobed to 1/4- 1/3, matte-green adaxial surface, pubescence and white veins, deltoid lobes with remotely denticulate margins; and 9-13 ray florets. Line drawings, distribution map, light microscope (LM) microphotographs of floral characters of S. albonervius, and color photographs of both S. albonervius and S. palmatisectus are provided. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。