1, A Dry Seed, showing the ridge corresponding to the 

 radicle within. 2, A Moistened Seed surrounded by its 

 swollen, mucilaginous seed-coat. 3, A Seedling, showing 

 the radicle, root-hairs, and the seed-leaves, not yet freed 

 from the seed-coat (testa = T). 4, A Seedling before 

 the lobes of the seed-leaves are quite expanded. 5, A 

 Seedling, showing the plumule (P), and with the seed- 

 leaves (c) expanded and ready to work. R = radicle. 



Fig. 24 

 54 



