22 



THE TRUE OR ASSES 



\ 



Fio 6. A, Longitudinal section through the ovary of Barley (after Johannsen, "Das 

 Endosperm der Gerste"); ni. micropyle: /,, i,, outer and inner integuments; es. 

 embryo-sac. B. Fruit of Wheat from in front. C, The same from behind. 

 >, The same with the embryo uncovered; P. the pericarp thrown back; sc, 

 scutelluin; K, embryonic bud and rootlet. E. The emoryo by itself, highly mag- 

 nified: sc, scutellnm; ep. epicotyl. F, The same in radial section. //, The same 

 seen from the side. J. Germinating wheat; c, the coleorhiza after being broken 

 through. 



