生物学通报1964年第5期,刊有李颖、张和岑、马虹新三同志的“植物的中柱类型”一文,系统地介绍了植物的中柱类型及其演化趋势,并且用我国的植物材料作为实例。我们阅读学习之后,获得不少教益,感觉到这一类的文章在植物学教学方面是很有意义的。在学习过程中,我们也发现有些地方值得考虑和 Bulletin of Biology, 1964, No. 5, published by Comrade Li Ying, Zhang Hezen and Ma Hong, “Compendium of Plant Types,” systematically introduces the types of plant stems and their evolutionary trends, Material as an example. After reading and studying, we learned a lot from these experiences and felt that this kind of article makes sense in botany teaching. In the learning process, we also found that there are some places worth considering and