Some additions and corrections to the recent treatment of this family in North America are made. The new species, Fuscopannaria convexa P. M. Jørg,. is described from hypermaritime Alaska. From this region, the hairy subantarctic Psoroma hispidulum Nyl., is recorded as new to North America. Fuscopannaria laceratula (Hue) P. M. Jørg. and Psoroma tenue Henssen are shown to have a wider distribution than previously anticipated, the latter arctic-alpine. Fuscopannaria labrata, a sorediate species, is described as new from maritime cliffs on the Channel Islands, California. The subtropical species Pannaria malmei C. W. Dodge, was incorrectly recorded from North America, and the material is renamed Pannaria rubiginella P. M. Jørg. & Sipm., a species recently described from Juan Fernandez in Chile. The new combination, Santessoniella crossophylla (Tuck.) P. M. Jørg., is made. A key to the two terricolous, Arctic species of Fuscopannaria containing green algae, F. globigera Fryday & P. M. Jørg. and F. viridescens P. M. Jørg. & Zhurbenko, is given.