Squamarina lentigera (Weber) Poelt

    Thallus forming rosettes, to 5-6 cm diam., made of numerous squamules, 1-2 mm wide, apices rounded and folded, upper surface very minutely felted, pruinose, white-chalk, white-glaucous, lower surface concolourous. Apothecia usually numerous, sessile, 2-3 mm diam., disc slightly concave, then flat and later slightly convex when mature, pale carnation-brown, pale beige-pink, exciple thin, white, excluded at maturity. Ascospores ellipsoid, colourless, simple, 12-15 (16) x 4-5 µm (according to our measurements that give sizes larger than usually found in literature). Photobiont: Chlorococoïd. Medulla : C-, K-, Pd-. Rare in our prospection area, since limited to dry calcareous dunes enriched in shell debris. Very often in association with Fulgensia fulgens and Toninia sedifolia of Toninion caeruleonigricantis.*