Gray clustering is a feasible method to assign these floristics to their suitable area, in which assorting vegetable and delineating the clustering objects by linear features are necessary.

在聚分区中利用各级线性地物划分聚，并繁物简要分十分重要。

The geographic distribution and floristic characteristic of Magnoliaceous 7 genera and 23 species in Jiangxi are studied in this paper.

摘要江西木兰科物7属23地理分布和区系特征进行了分析。