关键词: 七子花, 解剖结构

Abstract: The anatomical structures of root, stem, leaf and bud of Heptacodium minconioides were observed and the comparison to Viburnum odoratissmum var. awabuki was studied. The results showed that they are identical in general structure:the pith of their stems are strong and developed, leaves are all dorsiventral, palisade tissue cells are two layers and stomatos are found on the lower surface of the lamina, glandular hairs are on the surface of the lamina. Both the species differ mainly in the following structures:the root hairs of H. minconioides are obviously less than those of V. odoratissmum var. awabuki, the shape of their young stems and the shape of the vascular bundle in their stems are different from each other, and the palisade cells of H. minconioides are placed more orderly than those of V. odoratissmum var. awabuki.

Key words: Heptacodium minconioides, anatomical structure