Tremotylium Nyl.
Thallus crustose, heteromerous, amorphous. Photobiont green, Trentepohlia. Apothecia crowded, forming pseudostromata, each ascocarp with its well- developed hypothecium. Paraphyses branched. Ascospores very large, muriform, colourless or brown, 1-8 per ascus.
Key
Tremotylium, placed in the family Thelotremataceae, contains c. 6 species distributed in Australia, New Zealand, Asia and South America. Two species are described from New Zealand, but the genus is very much undercollected and requires serious study and collection. Both species are corticolous.
