Rigidoporus ulmarius
- kingdom: Fungi
- phylum: Basidiomycota
- class: Agaricomycetes
- order: Polyporales
- family: Meripilaceae
- genus: Rigidoporus
- species: Rigidoporus ulmarius
Bijagua
Alajuela
Costa Rica- United Kingdom
Jacksonville
FloridaSaint Martinville
Westwego
Louisiana
United States