HORDEUM 



143 



grows under the lemma and palet to the anterior end of the 

 grain and there becomes free. The coleoptile then opens 



' Jemma 

 / Jndicule 

 'j^ ^stamen 



Fig. 52. — Diagrams showing the relative position of spikelets in barleys. 

 A, six-rowed (Hordeum vulgare hexastichon) ; B, four-rowed barley (H. vul- 

 gare pallidum); C, two-rowed barley (H. distichon); D, medium barley (H. 

 vulgare intermedium). (After Broili.) 



and the first foliage leaf appears. In the germination of 

 barley, the young leaves become twisted. This is character- 



