Umbilicaria grisea Hoffm.

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

Number of records. 20. Countries. British Isles, United Kingdom, Ukraine. Substrata. rock. Literature. Cannon, Hawksworth & Sherwood-Pike (1985); Hawksworth, James & Coppins (1980) page(s) 101; Holubkova & Savich (1978); Kondratyuk (1986); Kondratyuk, Solonina, Navrotskaya, Baĭrak & Beznis (1989); Oksner (1929); Oksner (1937); Oksner (1962); Oksner (1968).