Gray’s pixie-cup lichen
- kingdom: Fungi
- phylum: Ascomycota
- class: Lecanoromycetes
- order: Lecanorales
- family: Cladoniaceae
- genus: Cladonia
- species: Cladonia grayi
Ardning- Oberdorf am Hochegg
Styria
Austria
Balderschwang
Bavaria
Germany
Särö
Halland
Sweden
Hot Springs Village
Arkansas- Mansfield City
Connecticut- Blades
- Greenville
- Middletown
- Seaford
Delaware- Camden
Maine- Accokeek
- Beltsville
- Bennsville
- Burtonsville
- Capitol Heights
- Charlestown
- College Park
- Crofton
- Denton
- East Riverdale
- Edmonston
- Fairmount Heights
- Gambrills
- Glenarden
- Hyattsville
- Lake Shore
- North Potomac
- Peppermill Village
- Riverdale Park
- Seat Pleasant
- Severna Park
- Travilah
- University Park
- Walker Mill
Maryland- Middleborough Center
- Waltham
Massachusetts- Ferrysburg
- Grand Haven
Michigan- Charlotte
- Manteo
- Yanceyville
North Carolina- Birchwood Lakes
- Kulpmont
- Milford
- Mountainhome
- Towamensing Trails
Pennsylvania- Winfield
West Virginia
United States