Phylum: Ascomycota Family: Mycosphaerellaceae
Sphaerellothecium minutum Hafellner
A parasitic fungus found on the lichen Sphaerophorus fragilis (Hafellner's isotype was also found on this species). There are two other British records. Sample sent to the Herbarium at the Royal Botanic Gardens, Kew
References:
Hafellner in: Herzogia 9: 760-762, 1993;
Website: Fungi and Lichens of Great Britain and Ireland