98 
curve which is seen near the seed coat (Fig. 19 : 1) commences to 
straighten and soon the rapidly emptying seed is held aloft. The 
cotyledons may now be seen extending out of the seed coat 
though their free a are still within: By a bowing of these 
a uorable position to receive 
hi e 
pl d, it manufactures 
with the help of the oe 
by m of the n color- 
ing matter, fie he 
is found in its stem and c 
ledons. 
The minute bud or plumule 
is to be found at the apex of 
S the stem above the point from 
Fra. 19. Seedlings of hemlock. which the sae joc extend. 
(Fig. : oe When the lat- 
ter spread themselves the p 0 grow, a number 
of delicate green ie ee The stem which bears 
these may lengthen an inch—usually less—the first season. 
A similar amount of growth for two or three subsequent 
seasons brings the seedling at that time to a height of about four 
inches. The young leaf-bearing stem is at first nearly vertical in 
ree wth, dep 
light which the plant hseaile receives, the newly formed stem 
takes a more horizontal position while the leaves come to lie nearly 
