Verrucaria dolosa Verrucariaceae
Verrucaria dolosa

Growth type crustose
Chemical results negative

Occurs on shaded siliceous rocks, limestona and concrete, often found on fragments

The grey-green to brownish thallus is thin and superficial, continuous or patchy but not composed of distinct goniocysts. Spores (13)15-18(19) x (6)6.5-8(9) Ám, the lower 2/3 often tapering.
Microscope photograph below.

Similar: V. murina occurs in similar habitats but has larger spores


Verrucaria dolosa

Verrucaria dolosa

Verrucaria dolosa

Microscope photograph
Verrucaria dolosa
Verrucaria dolosa
Portland and Lytchett Minster, Dorset. February, March and December 2016

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