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A stem top karyotykes of Holboellia fargesii Reaub was studied by observing the chromosome of cells.

用五叶风藤 (HolboelliafargesiiReaub)茎尖染色体制片 ,研究其染色体组型 ,结果表明 :五叶风藤的染色体组型公式为 2n =2x =16 =12m +4sm ,染色体基数x =8,第 4号染色体上有一对染色体随体 ,核型为 2B类型 ,其中 2n =4x =32 =2 4m +8sm的四倍性细胞相当普遍。

The Wufeng minefield is locating to the east of the Dafang county seat with an area of 89.

五风井田位于贵州省大方县城东侧,面积89。