树型图，最底端的形式被称为最终成分。

Tree-branch diagrams, of which the forms at the bottom are called ultimate constituents.

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方法采用RAPD技术对商品药材百合进行了多态性分析，并构建聚类树型图。

Methods Polymorphic analysis was used for the commercial crude drug Bulbus Lilii with RAPD technique and a tree diagram was constructed.

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方法：采用RAPD技术对不同产地的商品药材前胡进行多态性分析，并构建聚类树型图。

Methods: Analyzing polymorphics of commercial medicinal materials "Qian-Hu" at different regions by RAPD technique and constructing a clustering tree diagram.

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