168 [Assembly 



Order URTICACEiE . 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 . 



BffiHMERIA, Willd. 



cylindrica, Willd. Moist shady woods and thickets . July- Aug. 



Parietaria, L. Pellitory . 



pennsylvanica, Mulil. 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, L. Red Mulberry . Woods . May . 

 § alba, L. White Mulberry . About houses : naturalized in some 

 places . May . 



Order SAURURACE.E . 



Saururus, L. Lizard? s-tail . 



cernuus, L. Swamps and borders of streams . July . 



Order PODOSTEMACE^. 



PODOSTEMUM, Mickx . 



ceratophyllum, Michx. Lacis ceratophylla, Bong. On stones in 

 Black river. Dr. Crawe. 



Order AMENTACE.E . 



Sub-Order CupuLiFERiE. The Nut Tribe. 



Carpinus, L. Hornbeam. 



americana, Michx. Rocky woods . April . 



