Micarea erratica Micareaceae
Micarea erratica

Growth type crustose
Chemical results: Thallus negative

Common on smooth pebbles and small boulders, particularly flints and stable shingle. Rare on worked timber

Thin grey thallus with dark-grey or black fimbriate prothallus. Small (<0.4mm) dark apothecia, often leaving ring in substratum. Epithecium dark green-blue, hypothecium dark brown. Spores simple, 7-10 x 3-4 Ám. Pycnidia often abundant.

On pebbles can be confused with Catillaria chalybeia, Micarea lapillicola and Amandinea ssp.


Micarea erratica


Micarea erratica


Micarea erratica
Micarea erratica
On pebbles. Holton Lee and Studland Heath, Dorset. March 2013

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