Tremella fuciformis is the fruiting body of tremella fuciformis, a basidiomycete fungus, which consists of 10 thin and wrinkled flat petals. Tremella fruiting body is pure white to milky white, generally chrysanthemum-shaped or cockscomb-shaped, soft and white, translucent and elastic. Shrinkage after drying, horny, hard and brittle, white or beige. [3] The upper and lower sides of the fruiting body are covered with seed layers, which are composed of countless burdens. The basidium is nearly spherical and vertically separated, and its size is between 10×9 (micron)-13× 10 (micron). Microspores grow on basidiomycetes, which are colorless, smooth and nearly spherical, and the size is between 6×4 (micron) and 8.5 × 7 (micron).
Tremella fuciformis mycelium is generated by basidiospores germination, multi-celled, grayish white and extremely fine, which plays the role of absorbing and transporting nutrients. When the conditions are suitable, the mycelium forms a fruiting body, which is the edible part of human beings and consists of thin and wrinkled petals. White, smooth surface, elastic and translucent. After drying, it is light yellow, with hard cutin, sharply reduced volume, brittle and hard, and it is 1/3~ 1/8 with wet weight, which can be recovered after soaking in water. There is a layer of white powder on the petal surface of mature fruiting body, which is tremella spores. If the tremella spores are mature, they will automatically pop up, so that the next generation can be regenerated by wind, and so on.