Continuing the study of black mildews in fragments of the Atlantic forest, three new species and five new records are described herein. Irenopsis luheae-grandiflorae, Meliola vicosensisand Meliola xylopia-sericiaeare new species. Cecropia hololeuca, Piper gaudichaudianumand Trichilia lepidotaare new hosts for Asteridiella leucosykeae, Asteridiella glabroidesand Meliola trichiliaerespectively. Asteridiella obesaand Meliola psychotriaevar. chiococcaeare reported for the first time from Brazil. The new species are described and illustrated based on light and scanning electron microscopy and tables with main characteristics of morphologically similar specimens with species collected in Viçosa are provided. Other species belonging to Meliolaceae collected on hosts belonging to the Annonaceae, Meliaceae and Tiliaceae in Brazil also were studied.