52 



GENERAL BOTANY 



axis that connects them and ends in the radicle are 

 already formed in the seed. Germination only means 

 the greater development of the different parts coty- 

 ledons, radicle, hypocotyl and bud. 

 . This miniature plant that is in the seed is termed 

 an embryo. We must not suppose that the whole 



FIG. 12 



THE BROWN-BEAN AND ITS GERMINATION. NATURAL SIZE 



m. micropyle 



h. hilum 



str. strophiole or aril 



cot. cotyledon 



plant is present in the embryo, it is only the coty- 

 ledons, and the short piece of axis which connects 

 them and terminates in one direction in the radicle, 

 and in the other in the bud of the shoot. This by 

 the way constitutes another of the differences which 



