454 



BOTANY. 



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

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



Fias. 334-9. — ^Inflorescence op the Oat. 



Fio. 837. 



Fig. 838. 



Tig. 334.— Spikelet. 



SS- ?36--Spikelet opened. G. glumes ; P, palets ; ^, awn ; F, abortive flower. 



Fig, 336. —Flower wiih upper palet. 



Tig. 337.— Embryo. 



Fg. 338.— Section of grain. 



Fig. 339.— Diagram of spikelet. &l, 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 ihat wheat was originally derived from a wild grass called 



