ABSTRACT
Three new taxa belonging in Marasmius sect. Sicci are described from material collected from southeastern North America: M. pseudobambusinus, M. floridanus var. virginianus, and M. haematocephalus var. anomaloides. Marasmius floridanus var. floridanus is redescribed and M. spadiceus is considered a synonym. M. haematocephalus var. haematocephalus is reported from the southern Appalachian Mountains. All taxa are illustrated and compared with phenetically similar taxa.