Thallus 1-2(-3) cm tall, thin, fragile, easily fragmented when dry, erect or decumbent, spreading, lobate, stalked, attached by small, often proliferating root-like holdfasts, often forming extensive swards on bark or rocks. Lobes narrow, laciniate, ± strap-like 0.3-2 mm wide, highly dissected, margins entire, often minutely lobulate or phyllidiate, dichotomously to irregularly branched. Upper surface bright to pale green, olive to suffused-brownish, stalk darker, ribbed, flattened or ± terete, yellow-brown below, becoming distinctly orange- yellow on storage. Lower surface pale greenish to yellow-brown centrally and basally, white at margins, glossy, glabrous, minutely wrinkled, with a ± raised midrib to lobes. Cyphellae minute, pock-like, scattered, without a raised margin. Apothecia rather rare, sessile, solitary, towards lobe apices, 0.4-1.8 mmdiam., disc plane to subconvex, matt, smooth, pale red-brown with a pale, waxy margin, thalline exciple massive, smooth to slightly verrucose-areolate. Ascospores fusiform, brown, 1-septate, 35-40(-95) × 7-10 µm.