1897.] The Swamps of Oswego County, N. Y. 797 
The species here which are exclusively moor plants are : Ledum 
Groenlandicum, Kalmia glauca, Andromeda polifolia, Chame- 
daphne calyculata, Chiogenes hispidula, Schollera oxycoccus and S. 
macrocarpa. Many others, especially species of Vaccinium, 
live in the moor, but are not confined to them. 
Menyanthes trifoliata is a moor plant, and is not uncommon 
in our region. 
The Lentibuliariacee contribute to this group Utricularia cor- 
nuta, U. gibba, U. intermedia and U. resupinata, all of which are 
rare plants and grow only in the newer portions. 
In the order Composite, but three species can lay claim to 
being exclusively moor plants. These are Solidago ohioensis, 
S. uliginosa and Aster junceus. 
THE FLORA OF THE WOODED BELT. 
The third zone of the whole swamp is still to be considered. 
To attempt to enumerate the species as has been done in the 
case of the bog and the lake would contribute little to our 
picture of the swamp as a whole. The species are, for the 
most part, the same as may be found upon the surrounding 
uplands, especially in low places. In fact, we may say that 
just as the moor is steadily invading the lake, so the wooded 
belt is invading the moor, and there is by no means the sharp 
limitation to the outer edge of the wooded belt that there is to 
the outer edge of the moor or of the lake. It is always a tree- 
covered tract in the natural state, the size of the trees increas- 
ing as one passes from the edge of the moor to the hard shore. 
. The trees which appear most frequently are Ulmus americana, 
Acer saccharinum, Fraxinus nigra, Pinus strobus, Thuya occiden- 
talis, Larix laricina, Picea mariana and Betula lenta. Of these 
the predominating species are the first three or four. Shrubs 
are more abundant in the more open portions near the moor. 
Lindera Benzoin, Ilex verticillata, Ilictoides mucronata and several 
species of Vaccinium are the most prominent. The herbaceous 
the wooded belt is nota very rich one. Caltha often covers flora 
of the ground. The most prominent plants are the Osmundas, 
which grow in rank profusion. Smilax hispidia, Arisema tri- 
phyllum, Dalibarda repens, Trientalis americana, Medeola vir- 
