36 



ON SEEDLINGS 



ACCUMBENT AND INCUMBENT COTYLEDONS. 



the cotyledons. back of one O f the 



issaia to b e incumbent; 



..times it is turned along the edge of the cotyledons, 

 wh,le sometimes* ^ ^ ^^ ^^ t . 



as in figs. 7 c ; uciferaj are based to some extent on 

 om "being accumbent and somein- 

 P ed for some time over the reasons which 

 tount p f or this difference, though the explanation 



PIG. 74. 



FJOS. 73 and 74.-Section of seed of Cheiranthus Cheiri, x 10. 



which I would suggest is very simple when once stated. I 

 scarcely feel justified however in doing more than throwing it 

 out as a suggestion. . 



Seen in section the two forms would be as shown in ngs. 

 71 and 73 Now if from the form of the pods, or for any 

 other reason, it is an advantage that the seed should be com- 

 pressed as in fig. 73, then, the thickness of the cotyledons 



