1.根据不同种植物其所含淀粉形态之不同,可用以鉴定淀粉类商品,包括食品及药品的品种及其纯度。2.本文描述了我国北方习见的26种食用及药用含淀粉植物的淀粉粒形态特征,并附四幅图。3.为了保证研究的正确性,此次观察所用的材料皆由市场购来整个的果实、种子、块根或块茎;取其粉末加水镜检以确定其淀粉的形态特征。 1. It can be used to identify starch products, including the variety and purity of foods and medicines, depending on the starch morphology of different plant species. 2. This paper describes the morphological characteristics of starch grains of 26 edible and medicinal starch-containing plants in northern China, and attaches four drawings. 3. In order to ensure the correctness of the study, the materials used in this observation were all purchased from the market for fruit, seeds, tuberous roots, or tubers; their powders were microscopically examined by water to determine the morphological characteristics of the starch.