952 BOTANY. 
the radicle, for it is not a little root) ends in a very short 
root which is continuous with the stem. 
530. Under the proper conditions of heat and moisture, 
the root elongates and pushes out through the pore (micro- 
Fie, 140. Via. 141. 
Fie. 140.—Windsor Bean (Vicia faba). -A, seed with one cotyledon removed; 
c, cotyledon; kn, plumule; w, root; s,seed-coat 2B, germinating seed ; s, seed- 
coat, partly torn away at 1; st, stalk of one of the cotyledons; k, curved stem 
above, and hc, short stem below, the cotyledons; h, ws, root. 
Fie. 141.—Castor-oil Plant (Ricinus communis). J, longitudinal section of the 
ee seed. JI, germinating seed with the cotyledons still inside of the seed-coat 
(shown more distinctly in 4 and B). s, seed-coat; e, endosperm; c, cotyledon; 
he, stem; w, root. : 
pyle) of the seed-coat; at the same time the stalks of the 
cotyledons elongate and thus bring the plumule outside of 
the seed-coat, the cotyledons alone remaining within. Dur- 
ing the first few days of its growth the young plant is 
