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題名 | Aconitum Shennongjiaense (Ranunculaceae), a New Species from Hubei, China=中國湖北產烏頭屬一新種:神農架烏頭 |
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作者 | 高乞; 楊親二; | 書刊名 | Botanical Studies |
卷期 | 50:2 2009.04[民98.04] |
頁次 | 頁251-259 |
分類號 | 373.11 |
關鍵詞 | 細葉黃烏頭; 古林烏頭; 神農架烏頭; 旺業甸烏頭; 染色體數目; 核型; 新種; 分類學; Aconitum barbatum; Aconitum kirinense; Aconitum shennongjiaense; Aconitum wangyedianense; Chromosome number; Karyotype; New species; Taxonomy; |
語文 | 英文(English) |
中文摘要 | 本文描述了中國湖北西北部產烏頭屬一新種: 神農架烏頭(Aconitum shennongjiaense Q. Gao & Q. E. Yang)。本新種與吉林烏頭(A. kirinense Nakai)相似,花黃色,盔圓筒形,但花序軸和花梗密被開展的金黃色粗糙長柔毛、盔較細高、花瓣較長且明顯後彎或拳卷,子房密被上升的金黃色粗糙長柔毛,以及種子褐色、倒卵形、有橫皺但無翅而明顯有別。其體細胞染色體數目為 2n = 16 ,核型為 2n = 2 m + 6 sm + 8 st 。本文提供了神農架烏頭的彩色圖版、線繪圖、地理分佈圖以及花梗毛被、側萼片毛被和子房毛被的電顯圖。 |
英文摘要 | Aconitum shennongjiaense Q. Gao & Q. E. Yang, a new species of the Ranunculaceae from Shennongjia, northwestern Hubei, China, is described and illustrated. The new species is similar to A. kirinense Nakai in having yellow flowers and cylindrical helmets, but differs by the inflorescence axis and the pedicels densely golden villous with rough-surfaced patent hairs, the helmet higher and narrower, the spur of petals longer and obviously recurved or circinate, the ovary densely golden villous with rough-surfaced ascending hairs, and the seeds brown, obovoid, transversely lamellate, not alate. The chromosome number of the new species was counted to be 2n = 16, and the karyotype was formulated as 2n = 2 m + 6 sm + 8 st. A color plate, line drawings, distribution map, and SEM microphotographs of the pubescence of pedicels, of lateral sepals and of ovaries are given for the new species. |
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