4. Saving the best for last, it's Free Central Placentation!! This uber-uncommon placentation type is had by soapwort and other members of the Caryophyllaceae. Here, the ovary has no internal walls, but there is a central post-like column attached only at the base of the ovary, and that column is covered with seeds! This condition is called "free central placentation." The photo below shows (left) a soapwort flower teased apart to expose the outside of ovary, topped by its 2 styles, and (right) a soapwort fruit split lengthwise to expose the seed-covered central column.