The tree is valued for its fruit, which is oblong to pyriform in shape, 2-5 in.
They are globular, ovoid, or pyriform, and are sold by the individual pearl.
The egg of the Emperor is white, pyriform in shape, and weighs just under 1 lb.
Ovicells aculeate, with strong widely set spines, pyriform depressed.
The body is pyriform, with the shell opening at the larger end.
The first has not been examined by the writer and is said to be smooth and short, pyriform, 10 centimeters in diameter.
Front of cell with nine pyriform fenestrae, with fissures proceeding from their pointed ends towards an oval central perforation.
The pyriform medullary plate, already described, is the first external indication of the embryo.
Where the egg is pyriform, the large end makes way for the smaller.
The four pyriform eggs are pale buff, tinged with olive, blotched and spotted with dark brown and paler brown.