THE SEED. 



48 



Fig. 57.-P, The plu- 

 luule; I, fragment of 

 Avail of ovary ; tv, root 

 witlj root-hairs ahove 

 and naked below. 

 (Sachs). 



Fig. 59.-a, The caryopsis 

 of Sporoholus cryptandrm 

 wltliin the glumes ; h, the 

 empty ovary split open; 

 c, the seed which has 

 escaped from the ovary. 

 (Sudworth). 



In case of most grasses, tlie caryopsis 

 consists of the seed permanently inclosed 

 in the adherent walls of the ovary. The 

 seeds of Sporobolus, when mature, freely 

 escape from the delicate ovary as shown in 

 Fig. 59. 



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 roots tf^rliJ, * °' """i"* ^^ith lateral 



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