FLOWERING PLANTS AND TREES OF ROCKWOOD PARK. 343 
The wind-swept hills of Rockwood Park are not places on 
which to find the plants that grow in profusion on the meadows 
and hills farther inland, but there are potholes, basins at the 
foot of cliffs, secluded little valleys that contain violets, trilliums, 
adder’s tongue (fawn lily), spring beauties, clintonias, bellworts, 
lady’s slippers and other orchids such as arethusa, calopogon, 
calypso and habenarias. There are lakes which contain the 
nymphaea or white water-lily and the nuphar or yellow pond- 
lily; bogs and stretches of heath covered with the leather leaf 
{Chamaedaphne calyculata) and the bog rosemary {andromeda 
glaucophylla) the rhodora and the two kalmias {Kalmia angus- 
tifolia and K. polifolia) the early blooming mountain-fly honey- 
suckle, the Labrador tea, the creeping snowberry, the pyrolas, 
vacciniums (including the blueberries and cranberries) viburnums 
or withe-rods, taking in one of the most abundant shrubs in the 
park, the Viburnum cassinoides, or wild raisin, found everywhere 
in swamps and open places. Clothing the rocks in many places 
are mats of the rock or mountain cranberry, its thick shining 
leaves, rose-pink flowers, dark red berries forming a perennially 
beautiful ornament of the park. 
The most conspicuous and abundant trees in the park are the 
white cedar or arbor vitae and the white birch, the milk-white 
scattered stems of the one forming, especially in winter, a 
striking contrast to the dense, coneshaped clusters of the other. 
In late May or during the early days of June the amelanchier 
or June-berry is in bloom and a week later the wild red cherry. 
The amelanchier {amelanchier canadensis) is especially beautiful, 
the snowy white of its large blossoms and the brownish-purple 
of its opening leaves forming a marked contrast to the gray rocks 
of the hillsides. There are. two other species of amelanchier 
which scarcely rise to the dignity of trees {A . oblongifolia and A . 
oligocarpa) the blossoms of which are smaller and the leaves not 
so large or so well marked. There is no more beautiful display 
in the park than that of the amelanchier trees of early June, and 
this beauty may be preserved and increased from year to year 
if visitors will refrain from breaking off branches while the trees 
are in blossom. 
