2-1:4 GEOLOGICAL STRYEY OF CANADA. 



refer to the indigenous form. On arid soil. Saskatchewan. (JDrum- 

 mond.) Bank of Moose Jaw Creek, on arid clay. {Macoun.) White 

 Mud Eiver or Frenchman's C'leelc. 49th jiarallel. (Dawson.) Abun- 

 dant in the dry interior of British Columbia, along the Thompson 

 Eiver. (Fletcher d- mil.) 



(1136.) H. petiolaris, ISTutt. 



On arid soil along streams in the south-western part of the prairie 

 region, from the Elbow of the South Saskatchewan westward. 

 (JIacoun.) Along Belly Eiver. Sandy bank, Wood End on Soiu-is Eiver, 

 49th pai-allel. (^Daicson.) 



(1137.) H. rigidus, Desf. Tar. /i. Tojt. & Gray. 

 H. alrorvhens, Hook. Fl. I., 312. 

 Plains and grassy prairies. Banks of the Saskatchewan as far as 

 Edmonton. (Dnmmond.) From the Eed Eiver to the Eocky Moun- 

 tains, on the 49th parallel. (^Dairson.) Very common throughout the 

 whole prairie region. (Miuoun.) 



(1138.) H. Nuttallii, Torr. & Gray FL II., 324. 



On dry open prairie, often confounded with small forms of the next. 

 South of Battleford and near the Hand Hills. Also, west of Hum 

 boldt Telegraph Station. (JMacoun.) Bow Eiver vallej- at Calgarry. 

 (J. M. Macoun, C. F B. Coll.) Turtle Mountain, 49th Parallel. (Daw- 

 son.) Interior of British Columbia, ^Gray. ) 



(1139.) H. giganteus, Linn. 



Grassy thickets and borders of marshes. Vicinity of Hamilton, Ont. 

 (Logie.) Cayuga and Maiden, Ont. (Maclagan.) Common at London, 

 Ont. (Burgess.) Coldstream, Poi't Colborne, Ont. (McGill. Coll 

 Serb.) Marshy meadow at Point Edward near Sarnia, alsn in numer. 

 ous places along the Great Western Eailway, between Sarnia and 

 Hamilton. Yery abundant on the prairie region from the Lake of the 

 Woods to the Eocky Mountains, and northward to the forest line. 

 (Macoun.) 



(1140.) H. Strumosus, Linn. 



Dry, gravelly soil quite common in Hastings and Northumberland 

 counties, Ont. (Macoun.) Fields around Hamilton, Ont. (Logie.) 

 Strathroy, Ont. (McGill. Coll. Herb.) Vicinity- of London, Ont. 

 (Burgess.) A variety of this species was collected somewhere in the 

 North- West by Bourgeau. See Palliser's Eeport, page 258. Possibly 



