Lecanora rupicola (L.) Zahlbr. subsp. subplanata (Nyl.) Leuckert & Poelt Disque des apothécies C+ orange.

   Thallus relatively thick, cracked to areolate, greyish-white, yellowish-white, Apothecia numerous, often close together and then deformed, at first included in the thallus then slightly raised but not sessile, disk yellowish-white, brown- pale yellowish, sometimes pruinose with greyish, sinuous and more or less angular margin, quite distinct and whitish. Thallus: C-, K+ yellow, KC+ yellow-orange, P+ orange; Apothecia margin: C+ yellow, apothecia disc: C+ bright orange. Taxon characteristic of very exposed rocks by the sea, particularly in the islands.

N.B. Further inland in areas not exposed to spray this taxon is replaced by: Lecanora rupicola subsp. rupicola morpho rupicola Disque des apothécies C+ jaune.