Cladonia decorticata (Flörke) Spreng

    Primary thallus formed of small, upright scales with an incised and sometimes almost palmate margin, more or less persistent, upper surface yellowish-green, greenish, lower surface whitish. Podetions 1-3 cm high, simple and rarely branched, hollow, ending in an obtuse point and very rarely in a scyphus and then poorly formed, not sorediate, more or less areolate and covered with granules and especially squamules, especially towards the base, these squamules are often deformed or digitate, palmate, ... sometimes giving the impression of pseudoscyphus. Apothecia rare, at the top of the podetions, globose, brown. Pycnidia rare, black-brown. C-, K-, CK, P-, UV+ bluish-white. Boreal and northern species, alpine in France, growing on more or less bare acidic soils.