FIG. 92. DEVELOPMENT OF THE EMBRYO. (Maoqt and Decaisne.) 

 c h a f 



t-\ 



i, i 3, Development of a dicoty- 

 ledonous embryo. 4, 5, 6, 7, De- 

 velopment of a monocotyledon- 

 ous embryo, a, raphe ; c, cotyle- 

 don ; e, inner coat of seed ; /, 

 outer coat ; f, funicle ; g; plu- 

 mule ; A, hilum ; t, hypocoty- 

 ledonary axis ; r, radicle ; in, 

 micropyle ; k, groove occupied 

 by the plumule ; s, secondary 

 roots, i. Shows half a pea still 

 attached to the placenta. 2. 

 The embryo removed and split 

 open. 3. The embryo after a 

 few days' growth. 4. Shows a 

 section of the oat with small co- 

 tyledon and large mass of endo- 

 sperm. . 5. The embryo re- 

 moved from endosperm. 6. First 

 stage in its germination. 7. Ger- 

 minating embryo of maize. 



