Life … Fungi Including Lichens Sac Fungi Eurotiomycetes Pyrenulales Pyrenulaceae Lithothelium genus Lithothelium Lithothelium Field notes Children Clear-Spored Rash Lichen Lithothelium septemseptatum Lithothelium phaeosporum Lithothelium illotum native Lithothelium microsporum Lithothelium macrosporum Most observed native Lithothelium All Native to the US, by observations. Lithothelium illotum 1 observations Close