New species and records of mostly lignicolous dothideomycetous ascomycetes from Brazil Author Naziazeno, Leticia Muxfeldt Author Aptroot, André Universidade Federal de Mato Grosso do Sul, Instituto de Biociências, Laboratório de Botânica / Liquenologia, Avenida Costa e Silva, s / n, 79070 - 900, Campo Grande, MS (Brazil) andreaptroot @ gmail. com (corresponding author) text Cryptogamie, Mycologie 2023 2023-01-23 20 1 1 9 http://dx.doi.org/10.5252/cryptogamie-mycologie2023v44a1 journal article 247255 10.5252/cryptogamie-mycologie2023v44a1 0343984c-9680-4fd6-be19-b2ce73488d96 1776-100X 7815368 KEY TO SPECIES OF MelOMaSTia NITSCHKE EX SACC. 1. Ascospores 3-septate; lignicolous in terrestrial habitats ................................................................................... ...... Majority of the species of Melomastia would key out; the distinction between most of which are unclear. — Ascospores 7- or more septate ...................................................................................................................... 2 2. Corticolous in dry terrestrial environment ............................................................... M. septemseptata sp. nov. — Lignicolous in maritime and aquatic environments ........................................................................................ Here several species key out which for a long time united in the genus Dyfrolomyces K.D.Hyde, K.L.Pang, Alias, Suetrong & E.B.G.Jones , one of which was previously classified in the genus Saccardoëlla Speg.