Muellerella pygmaea (Körb.) D. Hawksw.

Selection criteria. Country: British Isles. Associated organism: any

Number of records. 10. Locations. state not noted. Associated organisms. Haematomma sp.; Lecidea sp.; Porpidia sp. Literature. Bisby & Mason (1940) page(s) 173, 175; Cannon, Hawksworth & Sherwood-Pike (1985); Dennis (1978); Hawksworth, James & Coppins (1980) page(s) 64; Triebel (1989).