Clauzadea immersa Porpidiaceae
Clauzadea immersa

Growth type crustose
Chemical reactions negative. Hymenium I+ pale blue

Found on hard, well-lit or shaded calcareous rocks, walls, limestone pavements and ledges and also on church memorials

White to pale-grey thallus, the deeply immersed blackish-brown apothecia often with pale-grey pruina. Pits left when apothecia fall out. Spores simple, 10-15(-19) (6-)7-8(-9) m, warted when mature. Pycnidia frequent.


Clauzadea immersa

Clauzadea immersa

Clauzadea immersa
Clauzadea immersa
Corfe Mullen and Portland, Dorset. January 2014, February 2016

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