Marasmiellus subgraminis
- kingdom: Fungi
- phylum: Basidiomycota
- class: Agaricomycetes
- order: Agaricales
- family: Omphalotaceae
- genus: Marasmiellus
- species: Marasmiellus subgraminis
- Brandenburg an der Havel
Brandenburg
Germany- Gainesville
Florida
United States