Rust jelly lichen
- kingdom: Fungi
- phylum: Ascomycota
- class: Lecanoromycetes
- order: Peltigerales
- family: Collemataceae
- genus: Collema
- species: Collema ryssoleum
Sestri Levante
Liguria
Italy
Camacha- Vila de Porto Santo
Madeira
Portugal
La Orotava- Los Silos
- Puerto de la Cruz
- Tanque
Canary Islands
Spain
Tariffville
Connecticut- Chillum
- Langley Park
- Takoma Park
Maryland- Alpine
- Closter
- Demarest
- Harrington Park
- Norwood
New Jersey- Snohomish
Washington
United States
Náousa