Thelocarpaceae Thelocarpon laureri Growth type crustose, ephemeral. BLS conservation evaluation: LC NS Chemical results: Widespread but occasional on burnt or recently exposed ground, stones, wood, bricks and old leather Thallus forms yellow-pruinose convex or hemispherical verrucae that surround the perithecium. Perithecial apex sometimes visible as dark centre. Asci multi-spored, spores simple, mostly 3 x 2 µm. Micrograph below Similar: Thelocarpon epibolum is lichenicolous on Baeomyces rufus, Lichenomphalia hudsoniana, Solorina and Peltigera spp.

Microscope photograph

Thelocarpon laureri
WLG meeting Morden Bog, Dorset. March 2017