Habitat: Arctic tundra, Rock Type = Calcareous.; on drier sites on tundra
Locality: Toolik Lake, Kuparuk River, Oxy. Creek area along Dalton Hwy., ca. mile 117 area. Northern foothills of the Brooks Range, along Dalton Hwy.
Habitat: Sandstone bluffs and gorges, hemlock/h ardwood coves, floodplains, upland mixed hardwood forests, pine forests, associated with oak, maple, tulip poplar, hemlock, pine; Rock Type = sandstone, sandstone conglomerate Species habitat: on exposed clay in roadbed, with Notothylas, ftnthoceros, Phaeoceros, ilicromitriua, Archidium.
Locality: Crane Hollow Nature Preserve (Crane Hollow, Inc.), S of Gibisonville & N of Conkle's Hollow State Nature Preserve, E of OH 374 & W of Cream Ridge Rd.
Habitat: upland oak, hickory, red cedar on ridges, sandstone gorges and coves; Rock Type = sandstone; on exposed, S facing sandstone along bluff tops
Locality: Ferne Clyffe State Park, S of Goreville