Apothecial section POL; Habitat: Basalt cliffs and upper part of talus, exposed NW slope; Location: Near top of ridge, Chandler Butte, Horse Heaven Hills, S of Benton City; Substrate: Rock, basalt; Elevation: 615 meters; Notes: P. atriseda det. Singh et al. 2015. Genbank: KP822398; KF562190; KF562182; KF601236; KF562173; KP823458.
Spores; Habitat: Basalt cliffs and upper part of talus, exposed NW slope; Location: Near top of ridge, Chandler Butte, Horse Heaven Hills, S of Benton City; Substrate: Rock, basalt; Elevation: 615 meters; Notes: P. atriseda det. Singh et al. 2015. Genbank: KP822398; KF562190; KF562182; KF601236; KF562173; KP823458.
Apothecia; Habitat: Basalt cliffs and upper part of talus, exposed NW slope; Location: Near top of ridge, Chandler Butte, Horse Heaven Hills, S of Benton City; Substrate: Rock, basalt; Elevation: 615 meters; Notes: P. atriseda det. Singh et al. 2015. Genbank: KP822398; KF562190; KF562182; KF601236; KF562173; KP823458.
Hymenium; Habitat: Basalt cliffs and upper part of talus, exposed NW slope; Location: Near top of ridge, Chandler Butte, Horse Heaven Hills, S of Benton City; Substrate: Rock, basalt; Elevation: 615 meters; Notes: P. atriseda det. Singh et al. 2015. Genbank: KP822398; KF562190; KF562182; KF601236; KF562173; KP823458.
Apothecial section; Habitat: Basalt cliffs and upper part of talus, exposed NW slope; Location: Near top of ridge, Chandler Butte, Horse Heaven Hills, S of Benton City; Substrate: Rock, basalt; Elevation: 615 meters; Notes: P. atriseda det. Singh et al. 2015. Genbank: KP822398; KF562190; KF562182; KF601236; KF562173; KP823458.
Apothecia; Habitat: Basalt cliffs and upper part of talus, exposed NW slope; Location: Near top of ridge, Chandler Butte, Horse Heaven Hills, S of Benton City; Substrate: Rock, basalt; Elevation: 615 meters; Notes: P. atriseda det. Singh et al. 2015. Genbank: KP822398; KF562190; KF562182; KF601236; KF562173; KP823458.
Thallus granules; Habitat: Base of basalt cliffs; Location: Horse Heaven Hills, near plot 7; Substrate: Soil and moss; Elevation: 472 meters; Notes: thallus C+R under LM.
Spores; Habitat: Agropyron spicatum steppe in ravine and slope, with fragments of calcareous cements (caliche) exposed at the surface; Location: Horse Heaven Hills, BLM land; Substrate: Soil; Elevation: 320 meters.
Habit; Habitat: Agropyron spicatum steppe in ravine and slope, with fragments of calcareous cements (caliche) exposed at the surface; Location: Horse Heaven Hills, BLM land; Substrate: Soil; Elevation: 320 meters.
Isotype, habit; Habitat: Agropyron spicatum steppe in ravine and slope, with fragments of calcareous cements (caliche) exposed at the surface; Location: Horse Heaven Hills, BLM land; Substrate: Soil; Elevation: 320 meters.
Thallus section; Habitat: Agropyron spicatum steppe in ravine and slope, with fragments of calcareous cements (caliche) exposed at the surface; Location: Horse Heaven Hills, BLM land; Substrate: Soil; Elevation: 320 meters.