i6 



HOW A PLANT GETS OUT OF THE SEED. 



groove on one side. Fig. ii. A cross section made through 

 the seed will show that it is in the form of a semi-circle. Fig. 12. 

 Most of the seed is made up of the hard, horny albumen or en- 

 dosperm. The small embryo is situated at one end of the seed. 



8. FLAX SFFD. 



This is flattened. 



much longer than 



broad, pointed at 



the lower end 



wiiere the seed scar 



occurs. The seed 



is smooth ind. -p-- rr- 



rigure 11 r igure 12. 



blown in color g^^,,^ ^^^ ^^^^^ ^-^^ ^f Cross sectior dp.-e palm seed 



XTri^xr m<-»icl-<^n (-l-r date palm seed. The greater 03rt of the seed is 



i\UW lUOlbieil lUL. hard, horny e.-dosp3r:Ti albumen 



IV.e trr.Lt \o tKcv. r. st ''. 



Figure 13. 



Flax with rcdicle cr rcct ''. \n 

 L'pper figure, " '', cciyitcors or 

 Eted [ec\£E c t d /■ plirr i. e. 



seed with water: you will notice that it 

 feels like mucilage. The outer part ot the 

 seed-coat has the property of swelling 

 when water is added. We will cut the seed 

 lengthwise; you will notice that the brown 



seed-coat has a light colored substance testa with cotvledan removed 



next to it; this is nourishing material stored outside of the em- 

 bryo and has received the name of albumen or endosperm. This is 

 similar to that found in maize, \vhere it is mealy, only it is not so 

 abundant. The embryo is situated in the center of the seed ( Fig- 

 13 ) and consists of the two seed leaves called the cotyledons, 

 and the conical initial sttni and rootlet below. Fig. 14. 



Figure 



Flax seed in p'-ocess of grer- 

 , cotyledons, '', 



