ASSOCIATED TREES 29 
growth near lakes and on ridges, where forest fires ap- 
parently have burned, but the small amount of young 
growth in the Park is chiefly confined to scattered in- 
dividuals coming up in windfalls and on the edge ot 
streams and lakes. Compared to the other trees with 
which it grows, White Pine is not tolerant of shade, 
and this is probably one of the important reasons why 
its reproduction is so poor. 
ASH 
Black Ash (Fraxinus nigra, Marsh.) occurs scat- 
tered in low moist situations, but nowhere forms an 
important element in the forest. It is apt te be rather 
crooked, and is often unsound. It has an average 
diameter of 12.9 inches. White Ash is very rare in the 
Park. 
CEDAR 
There isa small amount of Cedar (7huya occidentalis, © 
Linn.) in the Park, for the most part confined to 
swamps, although it occurs also to some extent on 
Spruce flats and on moist soil at the foot of Spruce 
slopes. Trees over ten inches in diameter were found 
to have an average diameter of 14.5 inches, and a 
height of 50 to 60 feet. Where the forest is open the 
Cedar has a long crown and short body. In crowded 
woods the crown is much shorter, and the timber is 
valuable for telegraph poles. 
