2. Poria cocos, the name of traditional Chinese medicine. It's Poriacocos(Schw. ) Wolf, a fungus of Polyporaceae. Excavate in July and September, remove the sediment after excavation, pile it up and dry it in the sun until the surface is dry, then sweat and repeat it several times until wrinkles appear, most of the internal water is lost, and then dry it in the shade, which is called "Poria cocos"; Or cut fresh Poria into different parts and dry them in the shade, which are called "Poria Block" and "Poria Slice" respectively.