Opening Leaves 
are the result of indigenous growth. Other climes have 
given us the yulan, tamarix, forsythia, quince, English 
hawthorn, bird cherry, ailanthus, the most valuable coni- 
fers, the deutzia, hydrangea, lilac, many beautiful spir- 
zeas, azaleas, weigelas, etc., etc.; but we are proud of 
our elms, maples, and oaks, our flowering dogwood, 
silver-bell-tree, red-bud, cottonwood, buttonwood, yel- 
low-wood, catalpa, beech, birch, etc. At the same 
time it is useless to deny that in very many genera 
the foreign species decidedly outrank the native; and 
in the last analysis will it not be necessary to admit 
that, with a presumably Asiatic origin of species, we are 
ultimately indebted to the Eastern hemisphere for all 
our wealth of vegetation ? 
The catalogue herein presented is based upon accurate 
official lists recently completed, and not yet published, 
by the Park Department, the correctness of which has 
been largely verified by my own observations during 
the past two years. 
This extensive area of landscape gardening is in three 
sections: the first, extending from Fifty-ninth Street 
to the north side of the ‘‘ Ramble,’’ is by far the most 
favorable for study, as it contains, in an area of little 
more than half a square mile, the majority of all the 
species throughout the grounds. The second section, 
reaching northward from the ‘‘ Ramble’’ to above 
Ninetieth Street, though hardly less beautiful in scenery, 
is not so elaborately cultivated ; and the third section 
contains the wilder portion at the upper end, where 
nature boldly asserts itself amid the few deft touches 
of art. 
