Enterographa crassa Roccellaceae
Enterographa crassa

Growth type crustose
Chemical reactions negative.

Common in southern England on shaded trees, occasionally on damp, sheltered rocks

Smooth or lumpy, grey, brown or olive-green thallus with black prothallus, often forming mosaics. Minute dark-brown, embedded apothecia (0.1-0.3mm) forming thread-like lines or dots. Asci 8-spored, the spores 5-7 septate, 28-38 x 4-6 Ám. Microscope photographs below.


Enterographa crassa

Enterographa crassa

Enterographa crassa

Microscope photographs
Enterographa crassa

Enterographa crassa
Enterographa crassa
Holton Lee and Badbury Rings, Dorset. December 2012, 2015

All images used are copyright. Please contact me if you find errors.