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, De CandoUe, Prodr. XVII., 177. 

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

 C. longifolia, 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.) Korthward from Prescott on the tribataries of the 

 Ottawa. (Billings.') A few trees along the Eideau 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 trees in 

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

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

 rather common between Queenston and Niagara, and sparingly west- 

 ward along Lake Brie, common on Pelee Point. (Macoun.) Eiver 

 flats at London, Ont. (Burgess.) Vicinity of Eat 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 Oat.) In the 

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

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

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

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

 Swan and Eed Deer rivers entering Lake Winnipegoosis, northern 

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

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

 Eed Eiver valley. (Dawson.) 



538. CANNABIS, Linn. (HEMP.) 



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



Adventitious from Europe but scarcely established anywhere. 

 Spontaneous in a few places at Eichibucto, N.B. (Fowler's Gat.) 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. 



