454 



BOTANY. 



some of these are hardy (winter wheats), others are tender (spring 

 wheats) ; some are awned, others awnless ; in some the grains are 



FIGS. 334-9. INFLORESCENCE or TUB OAT. 



FIG. 339. 



Fig. a34. Spikelct. 



Fig. 335. Spiketet opened. G. glumes; P, palets ; A, awn ; F, abortive flower. 

 Fig, 83i. Flower with upper palct. 

 Fig! 33r.-Embryo. 

 F'g. 338.- Section of grain. 

 Fig. 339. -Diagram of spikelet. Gl, glumes ; B, palets ; A, abortive flower. 



dark in color (red wheats), in others they are light colored (white 

 wheats). Fabre's experiments about a quarter of a century ago appear 

 to indicate that wheat was originally derived from a wild grass called 



