Nemania effusa
- kingdom: Fungi
- phylum: Ascomycota
- class: Sordariomycetes
- order: Xylariales
- family: Xylariaceae
- genus: Nemania
- species: Nemania effusa
Oestrich-Winkel
Rheinland-Pfalz
Germany
Port Byron
Illinois- Le Claire
Iowa
United States