Micarea coppinsii  

Thallus forming small rounded patches to 2 cm diam., but sometimes wide-spreading, of discrete, rounded, convex, grey-green to grey areoles, 0.04-0.22(-0.3) mm diam., many bursting apically to produce soralia. Soralia green to blue-grey, 0.1-0.2 mm diam., with farinose soredia 12-25(-30) µm diam., some with blue-green (K–, N+ red) pigmented hyphae. Prothallus not evident. Photobiont cells 4-7 µm diam.

Anamorph: pycnidial. Pycnidia occasional, 0.06-0.07 mm diam., emergent, pallid, with microconidia 4.5-6 × 0.6-0.8 µm, narrowly fusiform-cylindrical.

Teleomorph: ascomata apothecial. Apothecia very rare, similar to those of M. peliocarpa, to 0.2 mm diam., pallid to blue-grey, at first adnate and weakly marginate but becoming convex and constricted below and sometimes shortly stalked. Hymenium 45-70 µm tall, hyaline or partly greenish, K–, N+ red, Asci 30-44 × 12-20 µm. Ascospores 20-28(-31) × 4(-5) µm, fusiform to clavate- fusiform, ±curved, 3-septate.

Chemistry: thallus, soralia and apothecia C+ reddish (often faint), KC+ red, K–, Pd–, UV– (5-O-methylhiasic acid [major], gyrophoric acid [trace], ± lecanoric acid [trace]).