172 GEOLOGICAL SURVEY OP CANADA. 



(801.) CE. albicaulis, Nutt. 



CE. pallida, Lindl. Torr. & Gray, Fl. I., 495. 



Very common in the dry part of the prairie region. (Macoun & 

 Dawson.} In the vicinity of Spence's Bridge, B.C. (Hill.') 



(802.) CE. serrulata, Nutt. var. Douglasii, Torr. & Gt-ay. 

 CE. leucocarpa, Lehm. Hook. Fl. I., 210. Macouu's Cat., No. 701. 



Common on limestone rocks on the Red and Assiniboine Elvers. 

 (Douglas.} Dry banks of the Saskatchewan. (Drummond.} Common 

 on dry sandy or gravelly slopes throughout the prairie region. 

 (Macoun & Daw son.} 



(803.) CE. pumila, Linn. 



CE. piisilla, Michx. Fl. I., 225. 



CE. riparia, Hook. Fl. I., 212. 



Common on river banks amongst sand. Common at Pictou, N.S. 

 (McKay.} Windsor, Halifax, Straits of Canso, Guysboro, Wilmot, and 

 Annapolis, N.S. (Sommers' Fl. N.S} Very frequent in dry fields and 

 by roadsides, N.B. (Fowler's Cat.) Common near Quebec. (Brunei.} 

 Beven's Lake, River Rouge, Q. (D' Urban.} Island of Orleans and 

 ancient Lorette. (Thomas.} Nicolet, Q. (Maclagan.} Vicinity of 

 Montreal. (Holmes.} Lake Mistassini, Q. (Richardson.} Vicinity of 

 Ottawa. (Fletcher Fl. Ott.} In the northern parts of Addington, 

 Hastings, Peterboro, and Victoria Counties, Ont. (Macoun.} Vicinity 

 of Hamilton, Ont. (Logie.} MiBsissaqui Island, Lake Huron, and 

 north shore of Lake Superior. (E. Bell.} Parry Sound, and Lake of 

 the Woods. (Burgess.} 



(804.) CE. chrysantha, Michx. 



On drier ground than the preceding. Halifax, N.S. (McKay.} 

 Windsor, N.S. (How.} Vicinity of Quebec, and at the Quarantine 

 Station. (Brunei.) St. Helen's Island, Q. ; Chippewa, Ont. (Maclagan.} 

 Queenston Heights and Niagara Falls; twenty miles up the Kaminis- 

 tiquia River, Lake Superior ; Dawson Route, near Lake Shebandowan, 

 west of Lake Superior. (Macoun.} Hudson's Bay. (Michaux.} [?] 



(805.) CE. fruticosa, Linn. 



CE. hybrida, Michx. Fl. L, 225. 



Lucyfield, near Halifax. (Lawson.} Grand Lake, N.S. (Sommers.} 

 Island of Montreal. (Goldie.) 



NOTE. I have given all the localties from which the two last men- 

 tioned species have been reported. The last I believe to be really CE. 

 chrysantha, and that some of the reported occureuces of (E. pumila 



