168 [Assembly 
Order URTICACE^. The Nettle Tribe. 
Urtica, L. Nettle. 
pumila, L. Wet grounds . July- August . 
§ dioica, L. Stinging Nettle. Waste grounds, road sides, &c. 
July. 
canadensis, L. U. divaricata, L. Shady rocky places, along 
streams . July- August . 
Bcehmeria, Willd. 
cylindrica, Willd. Moist shady woods and thickets . July- Aug . 
Parietaria, L. Pellitory . 
pennsylvanica, Muhl. Shady rocky hill sides . July . 
Cannabis, L. Hemp. 
§ sativa, L. Fields, and along fences . June-July . 
HuMULus, L. Hop. 
^ lupulus, L. Borders of woods and rivers . August . 
MoRUs, L. Mulberry. 
rubra, X. Red Mulberry . Woods. May. 
§ alba, L. White Mulberry . About houses : naturalized in some 
places . May . 
Order SAURURACEiE. 
Saururus, L. Lizard* S'iail . 
cernuus, L. Swamps and borders of streams . July . 
Order PODOSTEMACEiE . 
PODOSTEMUM, Mickx . 
ceratophyllum, Michx. Lacis ceratophylla. Bong. On stones in 
Black river . Dr. Crawe . 
Order AMENTACEyE. 
Sub-Order CupuLiFERiE. The Nut Teibe. 
Carpinus, L. Hornbeam. 
americana, Michx. Rocky woods . April . 
