Schismatomma cretaceum Roccellaceae
Schismatomma cretaceum

Growth type crustose
Chemical results: K+ lemon yellow, C-, KC-, P-, UV +/- pale orange-grey

Occasional, forming large patches on dry, well-lit, old parkland and wayside trees. BLS conservation evaluation: LC Sc IR

Thick white, powdery thallus (scratching orange) covered with white soralia. Apothecia are unknown.
Sometimes host to Chaenothecopsis retinens, with red apothecia

Similar: S. niveum. Grey thallus, P+ orange-yellow, UV +/- orange-grey


Schismatomma cretaceum

Schismatomma cretaceum

Schismatomma cretaceum
Schismatomma cretaceum
Holton Lee and Badbury Rings, Dorset. March 2013, April 2016

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