168 [Assinmaele vs 
Orver URTICACEA. Tue Nertiz Trine. 
Urtica, L. Nettle. 
pumila, Z. Wet grounds. July-August. 
§ dioica, L. Stinging Nettle. Waste grounds, road sides, &c. 
July. 
canadensis, LZ. U.divaricata, L. Shady rocky places, along 
streams. July-August. 
Beumeria, Willd. 
cylindrica, Willd. Moist shady woods and thickets. July—Aug. 
Parietaria, L. Pellitory. 
pennsylvanica, Muhl. Shady rocky hill sides. July. 
Cannazis, L. Hemp. 
§ sativa, J. Fields, and along fences. June-July. 
Humutvs, L. Hop. 
§ lupulus, Z. Borders of woods and rivers. August. 
Morus, L. Mulberry. 
rubra, ZL. Red Mulberry. Woods. May. 
§ alba, L. White Mulberry. About houses: naturalized in some 
places. May. 
OrpER SAURURACE. 
Saurvurus, L. Lizard’s-tail. 
cernuus, L. Swamps and borders of streams. July. 
Orver PODOSTEMACE. 
Popostemum, Miche. 
ceratophyllum, Michx. Lacis ceratophylla, Bong. Cn stones in 
Black river. Dr. Crawe. 
Orper AMENTACE. 
Sus-Orper Cuputirer@. THE Nour TRrise. 
Carpinus, L. Hornbeam. 
americana, Michw. Rocky woods. April. 
