WINTER STUDY OF TREES 33 
end of the annual growth are strongest and are most apt 
to grow. The specimen illustrated was probably taken 
from the end of a branch of a rather young and luxuri- 
antly growing tree. Thus the Ash must have quite a 
regular growth and form a regularly outlined tree. 
The second twig (Sweet Gum) shows 7 years’ growth 
and is probably a side shoot from more or less within 
the tree-top. It is stunted in its growth by the want of 
light and room. The leaves were alternate. 
The third twig (Sycamore) also had alternate leaves; 
the pointed buds must have been under the leafstalks, as 
the leaf-scars show as rings around the buds. The larger 
branch grew three years ago. From the specimen one 
judges that the Sycamore is quite an irregularly formed 
tree. The twig had 11 leaves last year. 
The fourth twig (Silver Maple) shows that the plant 
had opposite leaves, and supernumerary buds at the sides 
of the true axillary ones; the true axillary buds are 
smaller than those at the sides. It would, in such cases, be 
reasonable to suppose that the supernumerary buds were 
floral ones, and that the plant blooms before the leaves 
expand. The annual growths are quite extended; two 
years and a part of the third make up the entire twig. 
If it was cut during the winter of 1891-92, it must 
have had leaves on the lower part in 1889 and 12 leaves 
on the middle portion in 1890, as well as probably 4 on 
the lower portion on the side shoots. Last year it had 
14 leaves on the end portion, two at least on each side 
shoot below, making 24 in all. 
Folding of Leaves in the Bud. 
There are some peculiarities in the arrangement of 
leaves in the bud which can be investigated only in the 
early spring. The common plans among trees are—In- 
fleced: blade folded crosswise, thus bringing it upon the 
footstalk. Tulip-tree. Conduplicate ; blade folded along 
3 
