繁缕亚科几种植物解剖结构的研究

THE STUDY OF ANATOMICAL STRUCTURE OF SOME PLANT AISINODEAS IN XINJIANG

本文对新疆产繁缕亚科几种植物进行了茎、叶、花解剖结构的研究。叶脉维管束鞘“花环”状,内有较大的叶绿体,茎的外韧有限维管束为其共同特征,子房隔膜由发达到不发达至无膈膜,反映出中轴胎座至特立中央胎座的演化痕迹。叶肉组织的分化,气孔的类型,茎中厚壁组织的有无,反应出各自适应不同自然环境的独特结构。

This paper deals with anatomical structure of five species of Alsioideae in Xinjiang. The stem, leaf, flower of these plants were studied under the microscope. It was discov-ered hat ringlike bundel sheth with bigger chloroplast in leaves and collateral vasculer in stems were common character. Diaphragm of ovary was from developed to undeveloped in the end without diaphragm, which reflected the evolution from axial placenta to free cen-tral placenta. The differentiated mesophyll, the different types of stoma and sclerenchyma in stem showed their characteristics which fit themselves to enviroments.