This is another typical foliaceous coral, resembling somewhat a huge, cabbage-like vegetable. It is attached by a thick stem and sends out more or less horizontally, a few large, thin fronds or laminae. On the upper surface of these fronds, the calyces are arranged at considerable intervals. These corals are also richly provided with small, sharp spines. The large, frond-like expansions are brittle and somewhat fragile, and break easily even under moderate pressure.