Basal placentation: one or more ovules are attached to the bottom of the ovary. This situation is found for example in some Portulacaceae like Portulaca (photo on the left; the yellow arrow is pointing to the ovules) or in Talinum (close up on the right; the black arrow is pointing to the placenta). The ovary is unilocular.

Apical placentation: one or more ovules are attached at the top of the ovary. The ovary is unilocular (we do not have a photograph showing this).