PyrgillusPyrgillus is a genus of lichen-forming fungi in the family Pyrenulaceae. The genus was circumscribed by the Finnish lichenologist William Nylander in 1858.SpeciesPyrgillus americanus Pyrgillus aurantiacus Pyrgillus cambodiensis Pyrgillus cubanus Pyrgillus fuscus Pyrgillus idukkiensis Pyrgillus indicus Pyrgillus javanicus Pyrgillus rufus ''Pyrgillus tibellii''