Leptogium
| Leptogium | |
|---|---|
| Leptogium phyllocarpum | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Fungi | 
| Division: | Ascomycota | 
| Class: | Lecanoromycetes | 
| Order: | Peltigerales | 
| Family: | Collemataceae | 
| Genus: | Leptogium (Ach.) Gray (1821) | 
| Type species | |
| Leptogium lacerum (Sw.) Gray (1821) | |
Leptogium is a genus of lichen-forming fungi in the family Collemataceae. It has about 110 species. Species formerly classified under Leptogium have since been divided among the genera Leptogium, Pseudoleptogium, and Scytinium. Leptogium lichens are predominantly found on tree bark or soil, often among mosses, and sometimes on rocks in moist environments.