L. caroliniana L. freyana L. laceratula L. pensylvanica L. pustulata L. rubiginosa Lasallia is a genus of lichen-forming fungi in the family Umbilicariaceae.

The genus was circumscribed by François Victor Mérat de Vaumartoise in 1821.

[1] The genus name Lasallia honours of Mr. Lasalle (born around 1820), who was a French gardener and botanist, who worked in Fontainebleau.

[2] Early molecular phylogenetics analysis of internal transcribed spacer DNA showed that the genus was monophyletic.

[3] High performance liquid chromatography analysis of several Lasallia species revealed a number of secondary metabolites in this genus, including gyrophoric acid, lecanoric acid, umbilicaric acid, 7-chloroemodin, valsarin, skyrin, hiascic acid, and ovoic acid.