Verrucaria macrostoma forma furfuracea Verrucariaceae
Verrucaria macrostoma forma furfuracea

Growth type crustose
Chemical results negative

Found on calcareous rocks, limestone and on mortar

The pale to dark brown, areolate or almost squamulose thallus is very similar to V. macrostoma but perithecia are absent. Soredia and isidia-like blastidia (vegetative propogules) develop on the edges of the areoles.

Similar: Verrucaria macrostoma, blastidea absent, perithecia present


Verrucaria macrostoma forma furfuracea


Verrucaria macrostoma forma furfuracea
Verrucaria macrostoma forma furfuracea
Steeple, Dorset. February 2014

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