Characters: Colonies are laminar, in whorls or tiers or vase-shaped. They are commonly over one metre across. Corallites are enclosed in rectangular pockets formed between radiating ridges and low walls which are parallel to frond margins. Septo-costae are moderately exsert and alternate.
Colour: Usually pale brown or yellowish, sometimes with white margins.
Habitat: Usually found on flat substrates.
Abundance: Uncommon but conspicuous.
Taxonomic Note: Possibly warrants a separate generic designation.