• (1) Maasoglossum verrucosporum - Macrophoma yuccocarpa
• (2) Macrophoma zeae - Marasmiellus latispermus
• (3) Marasmiellus lecythidacearum - Marasmius jodocodos
• (4) Marasmius jonides - Margarinomyces heteromorpha
• (5) Margarinomyces heteromorphus var. heteromorphus - Massariopsis subtecta
• (6) Massariopsis wallrothii - Melampsora yoshinagai
• (7) Melampsorella blechni - Melanoleuca strictipes
• (8) Melanoleuca stridula - Meliola arcuata
• (9) Meliola ardisiae - Meliola peregrina
• (10) Meliola perexigua - Merulius affinis
• (11) Merulius agaricoides - Metasphaeria primulicola
• (12) Metasphaeria profuga - Microglaena wallrothiana
• (13) Microglena punctifera - Microsphaera staphyleae
• (14) Microsphaera subtrichotoma - Milesina asplenii-incisi
• (15) Milesina blechni - Mollisia stictoides
• (16) Mollisia stromatica - Monodictys bogoriensis
• (17) Monodictys capensis - Mortierella kuhlmanii
• (18) Mortierella lignicola - Muellerella vesicularia
• (19) Muellerites juniperi - Mycena insignis
• (20) Mycena integrella - Mycerema chandleri
• (21) Mycerema vochysiacearum - Mycosphaerella bellula
• (22) Mycosphaerella berberidis - Mycosphaerella silenes-acaulis
• (23) Mycosphaerella silenicola - Mytilidion tortile
• (24) Mytilinidion acicola - Myzocytium zoophthorum