四、热带林木树型分析及检索表由于热带树木形态发育的极其多样,树木自幼年至成熟,其主干的生长,分枝的部位及方向(以主干为轴),分歧性,枝茎开展角度,营养芽、花芽着生的几何部位都很不同,最后决定形成不同的树型。尽管树型不同,但又有规律可循,这与热带树木在科、属分类上的亲缘固然有密切联系,但同属的不同种会有不同树型,而不同科属的树 Fourth, the analysis and retrieval of tropical tree trees As the tropical tree morphological diversity is extremely diverse, the tree from its infancy to maturity, the growth of its trunk, branches of the location and direction (to the backbone axis), divergence, Point of view, nutrition buds, flower buds geometry of the students are very different, the final decision to form a different tree. Although there are different types of trees, but there are rules to follow, which is closely related to the kinship of tropical trees in the genus and genus, but different species of the same genus will have different tree types,