CATALOGUE OF CANADIAN PLANTS. 269 



Var. minus, Gray. Lessor Burdock. 



Pictou, N.S. {McKay.} A form which probably belongs here was 

 found in some abundance at the railway station, Digby, N.S. {Macoun.) 



322. CARDUUS, Tourn. (PLUMELESS THISTLE.) 



(1252.) C. nutans, Linn. Musk Thistle. 

 Spreading from ballast at Chatham, N.B. {Fowler's Cat.} 



(1253.) C. crispus, Linn. Welted Thistle. 



Introduced, but scarcely naturalized. Sparingly in the streets of 

 South Sidney, Cape Breton ; and on ballast heaps at Pictou, N. S. 

 (Macoun.) West side of Courtenay Bay, city of St. John, N. B. 

 Apparently naturalized. {Hay.} 



323. CNICUS, Vaill. (COMMON OR PLUMED THISTLE.) 



(1254.) C. lanceolatus, Hoffm. Common Eoadside Thistle. 



Cirsium lanceolatum, Scop. Gray, Manual, page 273. Macoun's Cat., 

 No. 1066. 



Naturalized in pastures and along roadsides throughout Canada. 

 Very abundant along the margin of woods and in half-cleared lands, in 

 Ontario. Victoria, Vancouver Island. {Fletcher.) 



(1255.) C. Pitcheri, Torr. 



Cirsium Pitcfieri, Torr. & Gray. Gray, Manual, page 273. Macoun's 



Cat., No. 1067. 

 Borders of fields near Fort William, Thunder Bay. {Macoun.) 



(1256.) C. undulatus, Gray. Western Prairie Thistle. 



Cirsium undulatum, Spreng. Gray Manual, page 273. Macoun's Cat., 



No. 1065. 

 C. Hookerianum, Nutt. Torr. & Gray Fl. II., 457. 



Abundant on the western prairies from Manitoba to the Rocky 

 Mountains and northward to the limits of the prairie. {Macoun.) 

 Banks of the Saskatchewan. {Drummond.) Turtle Mountain, 49th 

 parallel, at Garrett's Eanche, Old Man River, N.W.T. ; also, Kootanie 

 Valley, B.C. (Dawson.) Spence's Bridge, B.C. {Fletcher.} 



(1257.) C. pumilus, Torr. (?) 



Cirsium pumilum, Spreng. Gray, Manual, page 274. 

 This form is apparently quite distinct from C. undulatus, as it is 



