CATALOGUE OF CANADIAN PLANTS. 431 



(195'7.) U. holosericea, Nutt. (?) 



XJ. dioica, var. occidentalis, Watson, Bot. King, Exp. 321. 



On damp soil in stream valleys, South Kootanie Pass, Eocky Moun- 

 tains. {Dawson.) 



(1958.) U. URENS, Linn. 



On ballast heaps and waste places eastward. Ballast heaps and waste 

 ground at North and South Sydney, Cape Breton, and on ballast at 

 Pictou, N.S. (Macoun & Burgess.) Bass Eiver, N.B. (Fowler's Oat.) 

 Ballast heaps, St. John, KB. (Hay.) St. Andrew's, KB. (Vroom.) 

 Magdalen Islands, Gulf of St. Lawrence. (McKay.) Kewfoundland. 

 (Miss Brenton.) 



541. LAPORT^EA, Caudich. (WOOD-NETTLE.) 



(1959.) L. Canadensis, Gaudich. 



Urtica Canadensis, Linn. Michx. Fl. 11., 178. Hook. Fl. II., 141. 

 U. dimrieata, Willd. Pursh, Fl. I., 113. 

 U. Canadensis, /3. minor. Hook. Fl. II., 141. 



Low moist woods, especially in river or brook valleys, from Nova 

 Scotia to Lake Huron. Stream valley at "Whycocogmah, Cape Breton. 

 (Macmm.) Eich intervales, Kouchibouguac, Bass Eiver, N.B. (Fowler's 

 Oat.) Norton, N.B. (Say.) Ste. Anne, Champlain Co., and in wooSs 

 at Nicolet, Q. (St. Oyr.) Abundant from Quebec westward to the 

 Sault Ste. Marie. 



542. PILEA, Lindl. (OLEARWEED.) 



(1960.) P. pumila, Gray. Eichweed. 



UrticapumUa, Linn. Michx. Fl. II., 178. Hook. Fl. II., 141. 



In boggy ground around springs and in marshy places. Odell's 

 Grove at Fredericton, and Norton, N.B. (Fowler's Oat.) Petitcodiac 

 and Havelock, N.B. (Brittain.) A troublesome weed on grounds of 

 C. E. Grosvenor at ^Canterbury, N.B. (Hay.) In western Quebec it 

 is quite common, and in Ontario to the Georgian Bay. 



