Leptogium marginellum
- kingdom: Fungi
- phylum: Ascomycota
- class: Lecanoromycetes
- order: Peltigerales
- family: Collemataceae
- genus: Leptogium
- species: Leptogium marginellum
Wahiawā
Whitmore Village
HawaiiCade
Greenwood
Jackson
Shenandoah
Louisiana
United States