Acarospora veronensis is a medium brown to dark brown or black crustose lichen that grows up to 4 cm (1.6 in) wide.[2]: 221 [3] It is extremely variable in its growth forms, being verruculose, rimose, areolate, or squamulose.[2]: 221 It has 0.2–1.5 mm round to angular areoles which may be lobed, and may be contiguous or dispersed.[2]: 221 It grows on acidic rocks, basalt, and sometimes on wood.[2]: 221 It is one of the most common members of its genus in the Sonoran Desert region, common in Arizona, southern California, Baja California north and south, Sonora, to outside the region in Durango.[2]: 221 Each areole bears one to many 0.1–1 mm rounded to angular apothecia that are deeply immersed in the areole,[2]: 221 with a dull reddish-brown flat to convex disc.[2]: 221 Cylindrical asci have 100 or more ellipsoid ascospores.[2]: 221 Lichen spot tests are all negative, and it is UV-.[3] It is an indicator of undisturbed soil habitats.[3] Sometimes specimens may look like Acarospora strigata.[2]: 221
Acarospora veronensis is a medium brown to dark brown or black crustose lichen that grows up to 4 cm (1.6 in) wide.: 221 It is extremely variable in its growth forms, being verruculose, rimose, areolate, or squamulose.: 221 It has 0.2–1.5 mm round to angular areoles which may be lobed, and may be contiguous or dispersed.: 221 It grows on acidic rocks, basalt, and sometimes on wood.: 221 It is one of the most common members of its genus in the Sonoran Desert region, common in Arizona, southern California, Baja California north and south, Sonora, to outside the region in Durango.: 221 Each areole bears one to many 0.1–1 mm rounded to angular apothecia that are deeply immersed in the areole,: 221 with a dull reddish-brown flat to convex disc.: 221 Cylindrical asci have 100 or more ellipsoid ascospores.: 221 Lichen spot tests are all negative, and it is UV-. It is an indicator of undisturbed soil habitats. Sometimes specimens may look like Acarospora strigata.: 221
