Teloschistaceae Flavoplaca microthallina (Caloplaca microthallina) Growth type crustose Chemical results: K+ crimson A maritime species often found parasitic on the thallus of Verrucaria maura or following cracks on acidic or calcareous coastal rocks Thallus of minute clustered or scattered yellow or orange-yellow lobes or squamules, prothallus absent. Conspicuous orange apothecia with crenulate margins, spores polarilocular, 12-15 x 6-8 µm, septum 2-3 µm wide. Soredia and isidia are absent.

Flavoplaca microthallina (Caloplaca microthallina)