Placenta columnar
-
Title
Placenta columnar
-
Definition
A type of placentation in which the lower septum is only slightly expanded more-or-less equally throughout its length as seen in a medial longitudinal section.
-
Notes
Species of Allantoma, Cariniana, and Couratari have this type of placenta, and Bertholletia excelsa also displays this type but the lower septum is much shorter in this than it is in the first three genera.
-
Related Terms
- *For more educational content, please visit The Hand Lens and explore our herbarium collections and the stories they tell.