Branching Coral | Pillar Coral | Table Coral | Elkhorn Coral | Foliase Coral | Encrusting Coral | Massive Coral | Mushroom Coral
These pillar corals were seen in the Florida Keys. Pillar corals are a type of digitate coral, growing upward in cylindrical forms that have been compared to fingers or clumps of cigars. Digitate corals are distinguished from branching corals in that they have no secondary branches. (Photo: Harold Hudson).