Wood ear mushrooms (Auricularia spp.) are commonly cultivated in Asia. Plastic bag cultivation is gaining popularity due to the scarcity of suitable logs and the ease with which different species of Auricularia can be cultivated on sawdust. The technology can be expected to spread in the near future. There are many Auricularia species of which A.polytricha, A. fuscosuccinea and A.auriculu-judea are the most commonly grown. A. polytricha is most suitable species to cultivate in tropical regions where temperatures are high.