CATALOGUE OF CANADIAN PLANTS. 429 



536. CELTIS, Linn. (NETTLE TREE.) 



(1949.) C. OCCidentalis, Linn. Sugar-beny. 



C. crassifolia, Pursh, Fl. I., 200. 



C. pumila, Pursh, Fl. I., 200. 



C. alba, Be Candolle, Prodr. XVII., 177. 



C. Mississippiensis, Bosc. Gray, Man., 443, 1868. 



C. longifoHa, De Candolle, Prodr. XVII., 177. 



Without exception, this tree has the most remarkable distribution 

 of any in the Dominion. A few grown trees here and there being all 

 that are usually found, in the same locality. St. Helen's Island, Mon- 

 treal. (Maclagan.) j^orthward from Prescott on the ti-ibutaries of the 

 Ottawa. (^Billings.) A few trees along the Kideau above Billings' 

 Bridge, and one or two small ones at Malloch's Bay and Brittania on 

 the Ottawa. {Fletcher FL Ott.) About a dozen well grown ti-ees in 

 the valley of Salmon Eiver, north of the Grrand Trunk Eailway, near 

 Shannonville ; a few shrubs along the Moira River at Belleville ; also 

 rather common between Queenston and Niagara, and sparingly west- 

 ward along Lake Erie, common on Pelee Point. (Macoun.) River 

 flats at London, Ont. (Btirgess.) Vicinity of Rat Portage, Lake of 

 the Woods. (B. Bell.) 



537. HUMULUS, Linn. (HOP.) 



(1950.) H. Lupulus, Linn. Wild Hop. 



In its wild state this species is always found in river bottoms. Cul- 

 tivated in New Brunswick. Scarcely wild. {Fowler's Cat.) In the 

 environs of Pictou, N.S. (McKay.) North shore of Lake Superior. 

 (Agassiz.) Very abundant in the valley of the Kaministiqua, seven 

 miles above Fort William, Lake Superior ; common in the valleys of the 

 Red, Assiniboine and Qu'Appelle rivers, and in the valleys of the 

 Swan and Red Deer rivers entering Lake Winnipegoosis, northern 

 limit about Lat. 53°. (Macoun.) River banks in thickets, Turtle 

 Mountains, Man. (Burgess.) Lake of the Woods, and at Emerson, 

 Red River valley. (Dawson.) 



538. CANNABIS, Linn. (HEMP.) 



(1951.) C. sATivA, Linn. Hemp. 



Adventitious from Europe but scarcely established anywhere. 

 Spontaneous in a few places at Richibucto, N.B. (Fowlefs Cat.) Near 

 Taborville Bridge, King's Co., N.B. (Brittain.) More or less common 

 in or about all the towns and villages of (Quebec and Ontario. 



