CRYPTOGAMS AND PHENOGAMS 553 
Fic. 380.—Norway Spruce. Growth of embryo. A, early stage, 192. 
B, later stage, 22. C, half-ripe embryo, showing below the protrusions 
from which the cotyledons are formed, 32. D, same, cut vertically. 
E, same, end view, showing the eight rudimentary cotyledons surround- 
ing the stem-tip. FF, embryo, fully formed (3), cut vertically to show 
the seed-leaves or cotyledons (c), the seed-stem (h), the beginning of the 
root (pl), root-cap (cp), fibrovascular cylinder of root (cl), pith of stem 
(m), and rudimentary fibrovascular strands (op) surrounding it. 
(Strasburger.) 
