40 THE BOTANY OF THE ROUTE. 



Aealia nudicaulis, Linn. 



CoRNUS SERiCEA, Linn. ; Fort Clark, Neb. 



CoRNUS STOLONiFERA, Michx.j Fort Clark, "Kinnickinnick." 



Stmphoricarpus occidentalis, R. Br. 



Symphoricarpus vulgaris, Miclix. 



Galium aparine, Linn. 



Galium trifidum, Linn. 



Galium triflorum, Michx. 



Galium boreale, Linn. 



Liateis punctata. Hook. 



EuPATORiUM perfoliatum, Linn. 



KuHNiA eupatorioides, Linn.; broad-leaved variety. 



Aster sericeus. Vent. 



Aster multiflorus, Ait. 



Eeigeron pumilum, Nutt. 



Erigeron c^spitosum, Nutt.; var. radiis flavidis. This is exactly Nuttall's Erigeron ccespito- 

 sum, or its var. grandiflorum, excej^t that the rays are light yellow in the dried specimens; so 

 decidedly so that one can hardly suppose them to have been pure white when living; yet this 

 is possibly the case. 



Erigeron Philadelphicum, Linn. 



Erigeron Canadense, Linn. 



Solidago rigida, Linn. 



SoLiDAGO incana, Torr. <fe Gray. 



Solidago Missouriensis, Nutt. 



Solidago gigantea. Ait. 



Aplopappus spinulosus, DC. 



Aplopappus lanceolatus, Torr. & Gray. 



Grindelia squarrosa, Duval. 



Chrysopsis villosa, Nutt. 



SiLPHIUM LACINIATUM, Linn. 

 SiLPHIUM PERFOLIATUM, Linn. 



Euphrosyne xanthifolia, Gray. 



IVA AXILLARIS, Pursh. 



Ambrosia coronopifolia, Torr. & Gray. 

 Ambrosia trifida, Linn., and var. integeifolia. 

 Xanthium echixatum, Murr. 

 Heliopsis l^vis, var. scabra, Torr. & Gray. 

 Echinacea purpurea, Moench. 

 Echinacea angustifolia, DC. 



Lepachys columnaris, Torr. & Gray, and varieties. 



Helianthus petiolaris, Nutt. A diminutive state of this species, common in the collectj'-. 

 is perhaps the H. pumihts of Nuttall. 

 Helianthus rigidus, Desp. 

 Helianthus maximiliani, Schroeder. 

 Helianthus strumosus, Linn. 



