300 THROUGH GLADE AND MEAD. 
sericea, Marsh. Silky Willow. Common. 
cordata, Muhl. Heart-leaved Willow. Worcester. 
Prof. Eaton. 
myrtilloides, L. Leicester. 
Popu.us, Tourn. Poplar. 
tremuloides, Michx. American Aspen. Common. 
grandidentata, Michx. Large-toothed Aspen. “ 
balsamifera, L., var. candicans, Gray. Balm of Gilead. 
Spontaneous. 
monilifera, Ait. Cotton-wood. Rare. 
CERATOPHYLLACE. 
CERATOPHYLLUM, L. Hornwort. 
demersum, L. Slow streams. G. £&. Stone. 
“f “ var. echinatum, Gray. a 
Suscuass II. GYMNOSPERME. 
CONIFER. 
Pinus, Tourn. Pine. 
Strobus, L. White Pine. Common. 
rigida, Mill. Pitch “ et 
resinosa, Ait. Red “ Templeton. V. P. Parkhurst. 
Picea, Link. Spruce. 
nigra, Link. Black Spruce. Not rare. 
Tsuca, Carriére. Hemlock. 
Canadensis, Carr. Quite common. 
Asiss, Link. Fir. 
balsamea, Miller. Balsam Fir. Northern part of the 
county. 
