香椿起源和分类地位的研究

Origin and Taxonomic Position of Chinese Toon [Toona sinesis (A. Juss.) Roem.]

依据植物地理学和被子植物起源的理论 ,研究香椿起源问题。根据研究 ,推测香椿起源于印度东北部和缅甸及其邻近地区。同时回顾了香椿分类地位的演变历史 ,香椿属于楝科香椿属已无疑义。但是 ,根据香椿等位酶分析证明 ,香椿品种间确实存在差异 ,确定香椿存在变种 ,尚需发现。

The origin of Chinese toon has studied in accordence with phytogeography and the theory of angiosperm origin.According to the authors' investigation,the source of Chinese toon originates from the region of northeastern India and Burma.By reviewing the evolutional history of the taxonomic position of Chinese toon,the tooon no doubt belongs to Toona Roem of Meliaceae.According to toon allozyme analysis it has been proved that three exist variations in toon speceies,however the variations of toon remain to be discovery.Research and naming.