| Phacopsis lethariellae | |
|---|---|
Scientific classification  | |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Lecanorales |
| Family: | Parmeliaceae |
| Genus: | Phacopsis |
| Species: | P. lethariellae |
| Binomial name | |
| Phacopsis lethariellae | |
Phacopsis lethariellae is a species of lichenicolous (lichen-dwelling) fungus in the family Parmeliaceae. It was formally described as a new species in 1995 by Josef Hafellner and Gerhard Rambold. The type specimen was collected by the first author from La Fortaleza (La Gomera) at an altitude of 1,180 m (3,870 ft), where it was found growing on the thallus of the lichen Lethariella intricata . It causes formations of galls, which also creates a torsion on the thallus. It has dark brown to black apothecia that are typically 0.3–0.5 mm in diameter, with a convex disc . Its ascospores are ellipsoid to ovoid, measuring 11–13 by 6–7 micrometres. The fungus, known to occur only in the Canary Islands, is named after the genus of its host. [1]
