Caloplaca oasis - Caloplaca oasis
A yellow crust forming lichen usually with abundant apothecia (0.2-0.4mm) which are orange to orange-brown. The apothecia are usually more obvious than than the thallus.
On calcareous substrates: limestone, mortar and concrete.
All year round
Occasionally found parasitic on Verrucaria species.
Leicestershire & Rutland Map
Enter a town or village to see local records