国产湖瓜草、球柱草和芙兰草三属果皮微形态特征初探

A PRIMARY STUDY ON THE MICROSTRUCTURAL FEATURES OF NUTLET SURFACES OF LIPOCARPHA,BULBOSTYLIS AND FUIRENA IN CHINA

首次对国产莎草料湖瓜草属、球柱草属和芙兰草属植物的果皮微形态特征进行了扫描电镜的比较观察。结果表明，上述三后果皮纹饰有三种类型：即网状纹饰、疣状纹饰和复合纹饰。其微形态特征存在着明显的种间区别，可为种的划分提供重要依据。研究结果为上述三属植物的分类提供新的佐证，亦为系统演化和亲缘关系的研究提供有价值的资料。

In this paper the nutlet surfaces ornamentation of 2 species of Lipocarpha R. Br. 3species of Bulbostylis C. B. Clarke and 2 species of Fuirena Rottb. in China were examined under SEM for the first time. The results indicate that the ftuit coat sculptures ofthese species can be divided into three types:Mimic reticulate. Verrucate are commpoundornamentation. The fruits of the three genera exhibit a high rnicromorphological diversity and complex. The author consider that the micrornorphological features of nutlets surfaces can provide most valuable criteria for classification between species.