一、绪言本文中所提到的植物,是指高等植物而言。本文系综合多篇零散外国文献而成。因为本人尚未学会俄文,没有把苏联的材料包括在里面;希望熟悉苏联材料的读者,予以指示及补充。我们都知道,人类日常生活中的衣、食、住、行,几乎完全直接或间接仰赖于植 I. INTRODUCTION The plants mentioned in this article refer to the higher plants. This article is based on a comprehensive collection of scattered foreign literature. Because I have not yet learned Russian, did not include the Soviet Union material; readers who wish to be familiar with the Soviet Union, to be instructed and added. We all know that the clothing, food, shelter and transportation in human daily life are almost entirely or indirectly dependent on planting