You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place MacDonald Forest near Corvallis 1/4 mi. inside Lewisberg saddle Remove constraint Place: MacDonald Forest near Corvallis 1/4 mi. inside Lewisberg saddle Place North America Remove constraint Place: North America Place Oregon Remove constraint Place: Oregon Topic Fungi Remove constraint Topic: Fungi Topic Lichens Remove constraint Topic: Lichens Topic Peltigera Remove constraint Topic: Peltigera