44 



VARIOUS FOOD-PLANTS 



Fig. 32. — Brazil Nut {Bertholletia excelsa. Myrtle Family, Myrtacem). 

 A, flower-eluster and leaf. B, expanding flower-bud viewed from below 

 showing the under side of the tvVo sepals. C, the same from above, 

 showing upper side of sepals, and the six petals. D, the numerous 

 stamens united bj' their filaments into a hoodlike body. E, upper part 

 of a stamen enlarged. F, ovary cut across, to show the four cavities 

 containing ovules. G, a single one of these cavities cut into lengthwise, 

 giving a side view of the ovules, enlarged. H, fruit, with the upper 

 part of its thick spherical wall removed to show the seeds within, 

 packed about a central spindle. A part of the outer, softer layer of the 

 wall is torn away in front, showing the channelled surface of the very 

 hard inner layer. J , the central spindle. A', a nut in side view. L, the 



