薇菜(Osmunda cinnamomea L.var.asiatica Fernald)属紫萁科紫萁属多年生草本植物,学名分株紫萁,又称牛毛广、桂皮紫萁等。主要分布于东北地区,以吉林、黑龙江省最普遍[1-3]。在自然界中,孢子萌发和原叶体生长、孢子体产生需要光照、水分、基质3方面处于最优状态,在自然环境或特定的时间内难以满足这一条件,因此,同龄孢子体幼苗数量极 Osmunda officinalis (Osmunda cinnamomea L.var.asiatica Fernald) is a genus Aster purple asparagus genus perennial herb, scientific name ramets aster, also known as cattle hair wide, cinnamon asparagus and so on. Mainly distributed in the northeast region to Jilin, Heilongjiang Province, the most common [1-3]. In nature, spore germination and prothallium growth, sporophyte production needs light, moisture, matrix 3 in the optimal state, in the natural environment or within a specific time is difficult to meet this condition, so the same age spores seedling number