Arthothelium
| Arthothelium | |
|---|---|
| Arthothelium spectabile | |
| Scientific classification | |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Arthoniomycetes |
| Order: | Arthoniales |
| Family: | Arthoniaceae |
| Genus: | Arthothelium A.Massal. (1852) |
| Type species | |
| Arthothelium tremellosum (Eschw.) A.Massal. (1852)
| |
| Synonyms | |
Arthothelium is a genus of lichen-forming fungi in the family Arthoniaceae. Species in the genus typically form crusts on smooth bark in humid, undisturbed habitats. They are distinguished from the related genus Arthonia by their spores, which are divided by both transverse and longitudinal walls into a brick-like pattern. The genus has a cosmopolitan distribution, with most species occurring in tropical regions.