Polysporina subfuscescens
- kingdom: Fungi
- phylum: Ascomycota
- class: Lecanoromycetes
- order: Acarosporales
- family: Acarosporaceae
- genus: Polysporina
- species: Polysporina subfuscescens
Bourne- Williamstown
Massachusetts- Dover Plains
New York- Tinicum
Pennsylvania
United States