Polymeridium quinqueseptatum
- kingdom: Fungi
- phylum: Ascomycota
- class: Dothideomycetes
- order: Trypetheliales
- family: Trypetheliaceae
- genus: Polymeridium
- species: Polymeridium quinqueseptatum
Oranjestad
Sint Eustatius
BQAmite
Roseland
Shenandoah
LouisianaSwansboro
North CarolinaMyrtle Beach
South CarolinaHouston
Texas
United States