Monograph of the Lichen Genus Relicina (Parmeliaceae)
Hale, Mason E.
Monograph of the Lichen Genus Relicina (Parmeliaceae) - Washington 1975 - 32 p. - No. 26; Smithsonian Contributi .
Monograph of the Lichen Genus Relicina (Parmeliaceae) - Washington 1975 - 32 p. - No. 26; Smithsonian Contributi .