Calogaya arnoldii subsp. arnoldii

Crustose saxicolous, on vertical calcareous and rich in nitrogen siliceous rocks, in shady places.

Note: lobes underdeveloped, spores with thick septum and relatively little, (9-12 x 4-5 micras).

Lithology: limestone
Altitude: 156, 500 m
Municipality: Almería, Tabernas