一、分类和分布方面美国科学家利用扫描电镜进行列当和独脚金这些鉴别困难的种的分类研究,照片上可以清楚地显示出列当种子的纤细绉纹。南斯拉夫学者证实,在南斯拉夫比较重要的列当种类是:在向日葵上的向日葵列当,烟草、蕃茄和大麻上的分枝列当,紫花 First, the classification and distribution of US scientists using scanning electron microscope column and the single-legged species of identification of these species difficult to identify, the photos can be clearly displayed as the seeds of the fine crepe. Yugoslav scholars have confirmed that the more important species in Yugoslavia are the sunflowers on sunflowers, the branches on tobacco, tomatoes and cannabis, the purple flowers