Original identification: Dermatocarpon meiophyllizum
Current identification: Dermatocarpon meiophyllizum
Photographer: Richard Droker
Date Photographed: October 20, 2015
Location: U.S.A., Washington: On landesitic rock in creek west of Knapsack Pass.
Elevation: [not provided]
Coordinates: [not provided]
Comments: With Nostoc.