Figure 27-1 Bertholletia excelsa
Illustration by Bobbi Angell
Figure 27-1 Bertholletia excelsa, A-D (Mori, et al. 17503), E-F, (Prance
et al. 16599), G. (Prance blastogeny collection No. 4). A. Habit.
Note how the petals are tightly appressed to the androecium. B. Medial
section of the androecium. Note how the hood appendages are swept
inward but do not form a complete coil. Nectar is produced at the
base of these appendages. C. Cross section of the ovary. D. Ovary
and calyx. Note the 2-parted calyx, a unique feature of this genus.
The long, geniculate style points to the open end of the flower where it
receives pollen when bees enter the flower but not when they depart.
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