Scytinium subtile (Schrader) Otalora, P.M. Jorg & Wedin

    Thallus formed by tiny lobes very indented and a little straightened, crenellated or a little coralloid at the top, more or less cylindrical at the beginning then flattened, of 1-2 mm, arranged in a carpet of 1-1.5 cm in diameter, surface smooth and shiny, greenish so wet, olive-brown so dry. (Entirely, on a cut, paraplectenchymatous with chains of Nostoc). Apothecia numerous, somewhat globular, 0.6-0.8 mm in diameter, flat disc, olive-brown to dark orange-brown, margin swollen concolourous at the thallus. 8-spore clavated asci. Hyaline ascospores, elliptical, submuriform to muriform, 20-31 x 10-12 µm according to the literature; 20-25 (28) x (8) 10-12 (16) µm according to our measurements. No significant color chemical reactions. A terricolous species that comes to the ground among bryophytes or on woody debris. See Scytinium tenuissimum whose lobes are very divided and jagged.