Some freshwater fungi from the Brazilian semi-arid region, including two new species of hyphomycetes

A preliminary study on freshwater fungi in a stream in the Brazilian semi-arid region was performed. Samples of submerged plant debris were randomly collected every three months from 2007 to 2009 in a small stream surrounded by riparian vegetation in the "Serra da Jibóia" Bahia state. We described and illustrated two new species of hyphomycetes, Dactylaria saccardoana and Quadracaea stauroconidia, and reported one hundred and fifty-one taxa that consist of both meiosporic and mitosporic fungi.