Apothecia; Habitat: Limestone outcrops in grasslands; Location: Along I-90 frontage road, near bridge over Gallatin River, near Logan, 10 km E of Three Forks; Substrate: Rock, limestone; Elevation: 1250 meters; Notes: A. obnubila det Knudsen 1010.
Squamules; Habitat: Limestone outcrops in grasslands; Location: Along I-90 frontage road, near bridge over Gallatin River, near Logan, 10 km E of Three Forks; Substrate: Rock, limestone; Elevation: 1250 meters; Notes: A. obnubila det Knudsen 1010.
Thallus section; Habitat: Limestone outcrops in grasslands; Location: Along I-90 frontage road, near bridge over Gallatin River, near Logan, 10 km E of Three Forks; Substrate: Rock, limestone; Elevation: 1250 meters; Notes: A. obnubila det Knudsen 1010.
Exciple; Habitat: Limestone outcrops in grasslands; Location: Along I-90 frontage road, near bridge over Gallatin River, near Logan, 10 km E of Three Forks; Substrate: Rock, limestone; Elevation: 1250 meters; Notes: A. obnubila det Knudsen 1010.
Spores; Habitat: Limestone outcrops in grasslands; Location: Along I-90 frontage road, near bridge over Gallatin River, near Logan, 10 km E of Three Forks; Substrate: Rock, limestone; Elevation: 1250 meters; Notes: A. obnubila det Knudsen 1010.