148 
of ie has (4 and winter Buds: are isan the latter as a 
as far g is concerned) 
during the greater part of the summer. 
A modification of this type of annual growth is often seen 
owt 
A further variation in the annual growth of ‘ranches, ie - 
be observed, is what may be called tt 
amain branch. This is well tigated by the behavior of several 
species of oaks. The first period of elongation extends only 
over a few w of early spring and is general for all branches 
developing on th Then a rather brief period of dormancy 
ensues after which terminal buds, and often lateral buds as well, 
resume grow e inal alone d the seaso 
mittent or discontinuous and involves the resumption of growth 
by fully formed winter buds during the same season in which 
these have been formed. 
The new growth of such branches is usually conspicuous, at 
di 
July of the past summer, there were many trees growing in the 
New York Botanical Garden which possessed thousands of 
