Ramalina breviuscula Nyl.

    Thallus shrubby, typically small tufts forming, 1-3 cm diam., 0.5-2.5 cm high, erect owing to some branches, strap-shaped, 1-5 mm wide and 0.5-3 cm long, apices more or less broadened, irregular, pointed or minute hook-shaped, grey-greenish when moist, grey-yellowish to greenish when dry. Apothecia absent to numerous, at branch apices, bowl-shaped, from shallow to deep, disc concolourous to the thallus, or slightly paler, exciple not sorediate. Colorless spores, 1-septate, sometimes slightly curved or kidney-shaped, 9-16 x 4-6 µm according to the literature, 10-14 (15) x 4-6 µm according to our measurements. C-, K-, KC-, Pd-. Mediterranean, unknown in our prospection area, rather common, on acid rocks near the seashore, seldom inland.

N.B. Appears like Ramalina fastigiata but the latter is larger, with wider branches and tightly corticolous (very seldom saxicolous on alkaline rocks).