Characters: Colonies are foliose to encrusting laminae. Corallites are deep and rounded, irregularly distributed and mostly outward facing. A central corallite is often distinguishable, especially in small colonies where peripheral corallites may be small or absent. Septo-costae are even, giving the coenosteum a smooth appearance.
Colour: Brown or green, sometimes mottled.
Habitat: Usually found on vertical or overhanging walls.