Revision of the genus Amphisphaeria
Two hundred and fifty four taxa have been described in Amphisphaeria, however, the species are often confused witrh species that also have 2-celled and brown ascospores, but belong in other genera. A revision of Amphisphaeria is presented here based on a slighty amended generic concept. Examination of 170 available type specimens indicates that only 12 species should be accepted in Amphisphaeria. The remaining species were found to belong in other genera, most of which have bitunicate asci.