Placentation as seen in ovary longitudinal section of Bertholletia excelsa.

Placentation of Bertholletia excelsa as shown in longitudinal sections based on Freitas 511 from Amazonas, Brazil. A. Section through the wall of a locule showing the ovules. B. Close-up of A. C. Locule after the ovlues have been removed. D. Medial section of a bud showing the locules at the apex of the septum. E. Close-up of D. F. Close-up of a locule on the left side of section G. Note the extruded inner integument of the ovule. G. Section showing the two locules plus a chamber of unknown function. H. Close-up of the locule on the right side of section G.