lichen
A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.fungi in the family Parmeliaceae. The genus has a widespread distribution, and contains 11 species. ''Protoparmelia'' was
circumscribed
In geometry, the circumscribed circle or circumcircle of a polygon is a circle that passes through all the vertices of the polygon. The center of this circle is called the circumcenter and its radius is called the circumradius.
Not every polyg ...
Protoparmelia badia
''Protoparmelia badia'' is a species of crustose lichen in the family Parmeliaceae. It is a widely distributed, common species that grows on rocks.
Taxonomy
The lichen was first formally described by German botanist Georg Franz Hoffmann in 17 ...