218 GEOLOGICAL SURVEY OP CANADA. 



273. TOWNSENDIA, Hook. 



(1012.) T. florifer, Gray. 



Erigeron (?) florifer, Hook. Fl. II., 20. 

 Stenotus florifir, Torr. & Gray Fl. II., 238. 



Dry rocky or gravellj' soil along the Milk Eiver and on the North 

 Branch of the North Fork of the Old Man Eiver alt., 5,000 feet, 

 N.W.T. (Dawson.) 



(1013.) T. sericea, Hook. Fl. II., IG. 



Aster (?) exscapus, Richards, in Frankl. Journ., 32. 

 Vicinity of Fort C'arlton on the Saskatchewan. (Bichardson.) Eare 

 upon the dry banks of the Saskatchewan, and among the Eocky Moun- 

 tains, Lat. 54°. (JDrummond.) Eocky Mountains. (Bourgeau.) 



274. SERICOCARPUS ,Nees. (WHITE-TOPPED ASTER.) 

 (1014.) S. solidagineus, Nees. 



Aster soUdagineus, Michx. Fl. 11., 108. 

 A. solidaginoides, Pursh Fl. II., 543. 



Moist woodlands, Canada. {Torr. & Gray Fl. II., 102.) Near Mon- 

 treal. (Oleghorn in Hooker.) We have no other record of this species 

 and consider its occurrence within our limits very doubtful. (Macoun.) 



275. ASTER, Linn. (STAR-WORT. ASTER.) 



(1015.) A. tanacetifolius, HBK. 



Machseranthera timacetifolia, Ness. Hook. Bot. Mag. t. 4624. 



On ai-id soil along the Milk Eiver, near the south-western boundary 

 of the prairie region, rare. (Bawson.) 



(1016.) A. canescens, Pm-sh. 



ifachsenniihera ranescens. Gray. Macoun's Cat., No. 1109. 

 Dielcria canescens, Nutt. Torr. & Gray Fl. II., 101. 



On arid, argillaceous soils in the south-western part of the 

 praii'ie region. South of Wood Mountain, in dry clay-bottomed valleys, 

 on sub-saline soil. {Dawson.) On dry saline soil, where there is little 

 vegetation, around the Hand Hills, and along the Eed Deer Eiver to 

 the south of them. {Macoun.) 



