半红树植物的营养器官结构与生态适应

对11科13属种半红树植物的营养器官进行了生态解剖的研究,主要特征是:通气组织和贮水组织不很发达,具有散孔材及旱年结构。地上根系、异常次生结构、木栓瘤和下皮只见于少数植物。结果表明:半红树植物不只有或少许具有真红树植物独特的结构。没有趋同适应。显示了结构与环境的密切关系。

THE STRUCTURE OF VEGETATIVE ORGANS AND ECOLOGICAL ADAPTATION OF THE SEMI-MANGROVE

The paper deals with ecological anatomy of the Semi-mangrove, including 13 species belonging to 13 genera and 11 families. The vegetative organs exhibit the following characters. Aerenchyma and aqueous tissue are poorly developed. Diffuse-porous wood and xeromorphic structure are present. The aerial root, anomalous secondary structure, cork wart and hypoderm are confined to a few of species. All these have shown that the semi-mangrove has no or a little peculiar structure of the true-mangrove, and there is no convergent adaptation. The studies exhibit that the organic structure is closely adapted to the environment.