FLORA OF WORCESTER COUNTY. 297 
*Esula, L. Rare. Miss K. I. Fish. 
*Cyparissias, L. Escaped. Common, 
Acatypna, L. Three-seeded Mercury. 
Virginica, L. Fields and open places. 
URTICACEA. 
, Utmus, L. Elm. 
fulva, Michx. Slippery Elm. Rare. 
Americana, L. American Elm. Common. 
CeEttis, Tourn. Nettle-tree. 
occidentalis, L. Hackberry. Rare. 
Cannabis, Tourn. Hemp. 
*sativa, L. East Worcester. 
Humutws, L. Hop. 
Lupulus, L. Common Hop. Low grounds. 
Morus, Tourn. Mulberry. 
*alba, L. White Mulberry. Spontaneous. 
Urtica, Tourn. Nettle. 
gracilis, Ait. Waste places, common. 
*dioica, L. Waste places. Rather rare. 
LaporteEa, Gaudichaud. Wood-Nettle. 
Canadensis, Gaudichaud. Rich soil. Rather rare. 
Piiea, Lindl. Richweed. 
pumila, Gray. Moist places, common. 
BceHMERIA, Jacq. False Nettle. 
cylindrica, Willd. Rich soil. Quite common. 
PLATANACE. 
Piatanus, L. Buttonwood. 
occidentalis, L. Common. 
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