MORPHOLOGY OF HIGHER PLANTS. 



413 



portion of the capsule comes off from the remainder like a lid, 

 and this form of dehiscence being circular or transverse to the 



1st 

 II ^L* ^^ qst 



Alb 



FIG. 240. The fruit of the cocoanut palm (Cocos nueifera): I, ripe cocoanut fruit 

 showing lower part of axis forming the stem (S), upper end of axil with scars of male flowers 

 (A), epicarp (Ep), mesocarp (M) with fibers, endocarp or hard shell (E), portion of testa 

 adhering to endosperm (T), endosperm surrounding cavity of nut (Alb) and germinating 

 eye (K); II, longitudinal-radial section of endocarp through the stone cells and edge of 

 bundle showing transversely elongated and isodiametric stone cells (qst), longitudinally 

 elongated stone cells (ist), thick-walled porous cells (f), pitted tracheae (g) and spiral 

 tracheae (sp); III, longitudinal section of a large (mesocarp) fiber showing stegmata (ste), 

 silicious body (Si), bast fibers (f), tracheids with small pits (t), tracheids with large pits 

 (tO, spiral tracheae (sp), reticulated tracheae (r), scalariform tracheae (sc), sieve tube (s) 

 and cambiform cells (c and c')- After Winton. 



sutures of the carpel, it is called CIRCUMCISSILE. A capsule of 

 this kind is known as a Pyxis or Pyxidium. 



