Snow Fungus (Tremella fuciformisis) a species of fungus; it produces white, frond-like, gelatinous basidiocarps (fruiting bodies). It is widespread, especially in the tropics, where it can be found on the dead branches of broadleaf trees. This fungus is commercially cultivated and is one of the most popular fungi in the cuisine and medicine of China. 
Tremella fuciformis is a parasitic yeast, and grows as a slimy, mucous-like film until it encounters its preferred host Annulohypoxylon archeri, then invades, triggering the aggressive mycelial growth required to form the fruiting bodies.