Collection of Plants from Colorado. 217 



Bigelovia grave olens (Gray). 

 „ Donglasii (Gray). 

 Two nearly allied species. 



Solidago Canadensis (L.). 

 van : procera (Torr & Gray). 



A handsome plant, tall and showy. 



Aster Fendleri (Gray). 



Aster sp. allied to Sibiricns Z., but with narrower leaves. 



Erigeron divergens (T. & G.). 

 Erigeron inacj'antJms (Nuttall). 



This last with very handsome many-rayed large 

 purple flowers. 



Rudbeckia laciniata (L.). 

 Wyethia Arizonica (Gray). 



A tall Helianthoid species, with bright yellow flowers, 

 oblong lanceolate leaves, and pubescent throughout. 



Gyinnoloniia vinltiflora (Bentham & Hooker). 



With larger flowers than the more ordinary form, but 

 the species is polymorphous. It is the Helionieris of Nuttall. 



HeliantJuis annuns (L.). 

 Heliantlius lenticularis (Douglas). 



These two are probably forms of one species, and as 

 such have been united by most modern botanists. 



Achillea MillefoliiLin (L.). 



More robust than the normal European form. 

 Artenusia Ludoviciana (Nuttall). 



A form of this Protean species — the Sage Brush. 

 Senecio eremophilns (Richards). 



A species endemic in Colorado. 



Cnicus ochrocentncs (Gray). 



Apocynace^. 



Apocymini androsceniifoliuvi (Linn.). 



