Someagaricfruiting stipe class by the residual part of the screen within the bacteria formed membranaceous ring. Fruiting body formation of young period, between the membrane cap and the stipeconnectedscreen in this film that the bacteria inside the . elongation started when the stipe, cap gradually opened, the curtain that is pulled inside the bacteria break, left in the stipe on the formation of bacteria within the fungus-screen ring. bacterium Duocheng membranaceous ring, a few showed cobweb-like, such assilkfilm bacteria, multi-single-layer, a small number of two-layer, such as the double loop woodland mushroom, etc.; some bacteria, Central, was born in the upper part of stipe, and some born in the middle or lower part of stipe, and some bacteria on the ring can be moved up and down the stipe, such as high-ring mushroom stem. common with the types of bacteria, such as mushrooms is a ring, ring rust umbrella genus Lepiota mushroom genus, Armillaria bacteria.