Habit; Habitat: Old Tsuga mertensiana-Abies forest; Location: Rainy Pass toward Cutthroat Pass, Pacific Crest Trail, North Cascades, Okanogan National Forest; Substrate: Bark, fallen conifer log; Elevation: 1650 meters; Notes: Spribille ID of Printzen species as Lecidea cf. rufotheca (unpubl.). Later named M. rufofusca.