FAM ILIAR SEEDS, STRUCTURE AND GERMINATION 9 
6a. The Pine Seed.—A pine seed (fig. 6) differs much 
—— 
7 
N 
\ 
Fic. 5.—Germination of Sunflower Seed. 
p. Pericarp. +r. Radicle, sr. Secondary roots. c. Cotyledon. h, 
Hypocotyl. pl. Plumule. s. Stem. J. Leaf. 
from any of those we have already described. The pine 
belongs to a different group of plants from the bean or 
a 
