Two species, "Tremella fuciformis" and "Tremella aurantialba", are commercially cultivated for food. Tremella fuciformis is also known in Chinese medicine for nourishing the lungs. In Chinese cuisine, "Tremella fuciformis" is traditionally used in sweet dishes. "Tremella fuciformis" extract is used in women's beauty products from China, Korea, and Japan. "Tremella fuciformis" is known to be a parasite of "Hypoxylon" species. "Tremella fuciformis" has been cultivated in China since at least the nineteenth century. Tremella fuciformis is a species of fungus; it produces white, frond-like, gelatinous basidiocarps (fruiting bodies).