Habit; Habitat: Outcrops and talus of siliceous metal-rich argillite; Location: Steep slope above Clark Fork River, near Lolo National Forest boundary, downstream from St Regis; Substrate: Wood, old log on talus; Elevation: 840 meters; Notes: Spribille & Hafellner 2014 from photos: We don't know what it is but are fairly sure it is not Micarea/Leimonis erratica.
Habit; Habitat: Boulders at brink of bench, with open Pinus ponderosa forest; Location: High bench above Clark Fork River, downstream from St. Regis, between Hwy 135 and river; Substrate: Bark, Populus trichocarpa; Elevation: 800 meters; Notes: Verrucaria phloeophila Breuss ? det. R. C. Harris 2001. V. sorbinea det Breuss 2010.