1. Poria, a fungus belonging to the order Poria, also known as Yuling, Poria, Wanlinggui, and Poria. It is the dried sclerotium of Poria cocos, a fungus in the family Pseudoporaceae. It is often parasitic on the roots of pine trees. It is shaped like a sweet potato, spherical, with a light brown or dark brown outer skin and a pink or white interior. It is called white Poria cocos or Yunling after refinement. Poria cocos is mainly produced in Anhui, Jiangxi, Jiangsu, Zhejiang and other places. It has the effects of expelling dampness and diluting water, benefiting the spleen and stomach, and calming the mind and calming the mind.
2. Poria cocos is spherical, oblate or irregular in shape, varying in size and weighing from two to more than ten kilograms. The surface is dark brown or tan, the skin is thin and rough, with obvious raised wrinkles, and is often covered with soil. Weight, hard texture, not easy to break; the cross-section is uneven, granular or powdery, the outer layer is light brown or light red, the inner layer is all white, a few are light brown, delicate, and cracks or brown pine roots and white velvet can be seen Block-shaped pieces are inlaid in the middle. It has no odor and sticks to your teeth when chewed. The best ones are those that are solid in weight, have brown and slightly shiny skin, deep wrinkles, white and delicate cross-sections, and strong tooth adhesion. The white poria cocos has been cut into thin slices or cubes, and is white in color, delicate in color, and has a pinkish texture. The texture is crispy, easy to break and broken, and sometimes the edges are yellow-brown.