Synonyms: Cladonia uncialis f. turgescens (Delise) Fr.; Cladonia uncialis subsp. dicraea (Ach.) D. Hawksw.
Distribution: N - Frl (Martellos 2005), Ven (Jatta 1909-1911).
Description: Primary thallus squamulose, ephemeral and rarely seen, the squamules to 1 mm long, white beneath. Podetia shrubby, forming more or less compact tufts, hollow inside, pale yellowish green, pale grey and not melanotic at base, the terminal branchlets often brownish at tips, esquamulose, sparingly and mainly anisotomic-dichotomously branched, to 2-5(-8) cm tall, 0.5-1 mm thick, with pointed apices and divergent branches, the axils perforate or closed. Cortex smooth, maculate; surface of central canal finely powdery-granulose, especially in upper parts. Apothecia extremely rare, brown, convex, small. Asci 8-spored, clavate, thickened at apex, with a K/I+ blue tholus and a K/I+ strongly blue outer gelatinous sheath, Cladonia-type. Ascospores 1-celled, hyaline, ellipsoid. Pycnidia dark, semi-immersed, apical, with a colourless jelly. Conidia cylindrical. Photobiont chlorococcoid. Spot tests: K-, C-, KC+ yellow, P-, UV+ white (medulla). Chemistry: usnic and sometimes squamatic acids.
Note: this subspecies differs from subsp. uncialis in the frequent presence of squamatic acid, and in having a powdery inner surface of the podetia. Mixed population may occur, where ìndividuals may be difficult to assign to either subspecies.
Growth form: Fruticose
Substrata: soil, terricolous mosses, and plant debris