LITERATURE CITED
- Clements, F. E., and C. L. Shear. 1931. The genera of fungi. The H. W. Wilson Company, New York. 496 p.
- Gyelnik, V. 1932. Über einige Arten der Gattung Parmeliopsis (Stizenb.) Nyl. Ann. Mycol. 30: 456–459.
- Hale, M. E., Jr. 1981. Pseudocyphellae and pored epicortex in the Parmeliaceae: their delimitation and evolutionary significance. Lichenologist 13: 1–10.
- Hillmann, J. 1936. Parmeliaceae. 2nd ed. In: Kryptogamenfl. Deutschl. Österr. Schweiz. 9, Part 3: 1–309. Ed., L. Rabenhorst. Eduard Kummer, Leipzig.
- Meyer, S. L. F. 1982. Segregation of the new lichen genus Foraminella from Parmeliopsis. Mycologia 74: 592–598.