Parmeliaceae: 625 taxa in 30 genera.

Graphidaceae: 340 taxa in 38 genera (incl. Thelotremataceae).

Physciaceae: 252 taxa in 21 genera.

Teloschistaceae*: 164 taxa in 5 genera.

Pertusariaceae: 163 taxa in 1 genus.

Lecanoraceae: 126 taxa in 13 genera.

Roccellaceae**: 122 taxa in 27 genera.

Lecideaceae**: 110 taxa in 11 genera.

Cladoniaceae: 110 taxa in 8 genera.

Porinaceae: 106 taxa in 2 genera.

Xanthoparmelia: 299 taxa.

Pertusaria: 163 taxa.

Caloplaca*: 140 taxa.

Porina: 100 taxa.

Lecanora: 88 taxa.

Graphis: 77 taxa.

Cladonia: 76 taxa.

Buellia: 69 taxa.

Parmotrema: 63 taxa.

Lecidea**: 61 taxa.

Usnea: 54 taxa.

Verrucaria: 50 taxa.

*Revision underway.

**Revision required.