Rhizocarpon obscuratum (Ach.) A. Massal.

Selection criteria. Country: any country. Associated organism: any (distribution map)

Number of records. 49. Date information. 1947 (Jul). Countries. Argentina, Australia, Bolivia, British Isles, Chile, China, Georgia, Greenland, India, Japan, New Zealand, Slovakia, South Africa, United Kingdom, Ukraine, country not noted. Associated organisms. Dacampia sp.; Polycoccum arnoldii. Other substrata. miscellaneous, rock. Collections. KW [Darwin] 30748, 30867; TBI unnumbered. Literature. Cannon, Hawksworth & Sherwood-Pike (1985); Hawksworth, James & Coppins (1980) page(s) 88; Kondratyuk & Solonina (1990); Kopachevskaya (1986), 138; Makarevich, Navrotskaya & Iudina (1982); Nakhutsrishvili (1986) page(s) 726; Oksner (1968); Singh & Sinha (2010) page(s) 400.