Carduaceae 297 



acute, the greenish tips a little spreading; 

 rays \ an inch long or more, violet. 



The most showy of all the Asters, frequent 

 in the Rockies at the lower altitudes, on 

 slides and on gravelly river banks, forming 

 great masses of colour when flowering in late 

 July and early August. 



Stem stout, leafy to the summit, 

 Aster major . 



, ,. densely long-hairy, or rarely 



P orter . smooth, branched above, 2-6 



Great feet high. Leaves rather thin, 



Northern lanceolate, partly clasping by 

 a narrowed base, acuminate at 

 the apex, sharply serrate with low distant 

 teeth, dark green and lightly hairy above, 

 densely soft-hairy on the veins beneath, 

 3-5 inches long, \ to nearly an inch wide. 

 Heads mostly solitary, at the ends of short 

 branches, ij inches broad; involucre hemi- 

 spheric, its bracts little imbricated, green, 

 linear- subulate, densely glandular; rays 

 35-45 purple, about \ an inch long. 



In moist soil in the valleys of the Selkirks ; 

 flowering during August. 



