Primary thallus squamulose-laciniate, small, convex, sublinear, irregularly lobed-multifid, margins irregularly crenulate. Podetia short 1-3 mm tall, simple or coralloid, terete to laterally compressed, solid, often crowded forming a ± diffract spreading crust. Surface smooth, often shining, occasionally cracked, greenish-brown above, cream or yellowish-brown below. Medulla white. Apothecia sessile on the tips of fertile podetia, often sunk below the surface of clustered sterile podetia, convex, peltate black or brownish-black, shining 0.5-1 mm diam. Ascospores simple, colourless, ovoid-ellipsoid, 5-12 × 4-7 µm. Chemistry: Thallus and medulla K-, C-, KC-, Pd+ red or -. Melacarpic, congrayanic, grayanic and fumarprotocetraric acids [Chester and Elix Aust. J. Chem. 33: 1153-1156 (1980)].