Verrucaria murina Verrucariaceae
Verrucaria murina

Growth type crustose
Chemical results negative

Can be frequent in urban and rural habitats on siliceous stones and rocks, bricks, chalk and limestone.

Thallus usually forms small, thin, green or dark brown patches with +/- prominent perithecia. Spores (14)18-24(28) x (6-)8-11(14) Ám. Microscope photograph below.

Similar: V. dolosa occurs in similar habitats but has smaller spores


Verrucaria murina


Verrucaria murina

Microscope photograph
Verrucaria murina
Verrucaria murina
Lychett Matravers, Dorset. January 2014

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