Brazil nut (Image keywords)
Botanical line drawing of Bertholletia excelsa. Drawing by B. Angell.
Fig. 45 from Fl. Neotrop. Monogr. 21(II). 1990. A. Habit, note how the petals are tightly pressed against the androecium. B. Medial longitudinal section of an androecium, note how the hood appendages are swept inwards but do not form a complete coil. C. Cross section of an ovary. D. Ovary and calyx, note the 2-parted calyx, sessile ovary, and long, geniculate style. E. Fruit, note that the opercular opening is smaller in diameter than the size of the seeds. F. Seed. G. Seedling.
Leptocaul tree of Bertholletia excelsa.
A small stand of Brazil nut trees (Bertholletia excelsa) photographed in Amazonian Brazil. This species is many-branched and is an example of a typical leptocaul species of neotropical Lecythidaceae.
An agouti removing the seeds from a Brazil nut fruit.
A red-rumped agouti (Dasyprocta leporina) removing seeds from a fruit of a Brazil nut tree (Bertholletia excelsa).
Remnant Brazil nut trees (Bertholletia excelsa)
Remnant Brazil nut trees (Bertholletia excelsa) based on unvouchered trees from Mato Grosso, Brazil. Deforestation is the major threat to the survival of this species.