Habit; Habitat: Rocky alpine summit with dark igneous rock, metal-rich rock, and marble; Location: Summit of Matterhorn, Wallowa Mountains, Eagle Cap Wilderness; Substrate: Rock, iron-rich HCl-; Elevation: 2995 meters; Notes: C. saxicola s. str. of Gaya (2009). Caloplaca saxicola det. E. Gaya 2011.
Spores; Habitat: Rocky alpine summit with dark igneous rock, metal-rich rock, and marble; Location: Summit of Matterhorn, Wallowa Mountains, Eagle Cap Wilderness; Substrate: Rock, iron-rich HCl-; Elevation: 2995 meters; Notes: C. saxicola s. str. of Gaya (2009). Caloplaca saxicola det. E. Gaya 2011.
Asci; Habitat: Rocky alpine summit with dark igneous rock, metal-rich rock, and marble; Location: Summit of Matterhorn, Wallowa Mountains, Eagle Cap Wilderness; Substrate: Rock, iron-rich HCl-; Elevation: 2995 meters; Notes: C. saxicola s. str. of Gaya (2009). Caloplaca saxicola det. E. Gaya 2011.
Habit; Habitat: Rocky alpine summit with dark igneous rock, metal-rich rock, and marble; Location: Summit of Matterhorn, Wallowa Mountains, Eagle Cap Wilderness; Substrate: Rock, iron-rich HCl-; Elevation: 2995 meters; Notes: C. saxicola s. str. of Gaya (2009). Caloplaca saxicola det. E. Gaya 2011.
Habit; Habitat: Marble outcrops on slope with patchy Pseudotsuga forest; Location: Below Marble Point on trail to Francis Lake, Wallowa Mountains; Substrate: Rock, marble outcrops; Elevation: 1800 meters; Notes: Caloplaca biatorina det. E. Gaya 2011 but spores and thallus color match C. saxicola very well.
Habit; Habitat: Marble outcrops on slope with patchy Pseudotsuga forest; Location: Below Marble Point on trail to Francis Lake, Wallowa Mountains; Substrate: Rock, marble outcrops; Elevation: 1800 meters; Notes: Caloplaca biatorina det. E. Gaya 2011 but spores and thallus color match C. saxicola very well.
Spores; Habitat: Marble outcrops on slope with patchy Pseudotsuga forest; Location: Below Marble Point on trail to Francis Lake, Wallowa Mountains; Substrate: Rock, marble outcrops; Elevation: 1800 meters; Notes: Caloplaca biatorina det. E. Gaya 2011 but spores and thallus color match C. saxicola very well.
Apothecial section; Habitat: Rocky alpine summit with dark igneous rock, metal-rich rock, and marble; Location: Summit of Matterhorn, Wallowa Mountains, Eagle Cap Wilderness; Substrate: Rock, iron-rich HCl-; Elevation: 2995 meters; Notes: C. saxicola s. str. of Gaya (2009). Caloplaca saxicola det. E. Gaya 2011.
