44 BOTANY OF THE ROUTE. 



ARALIA NUDICAULIS, Linn. 



CORNUS SERICEA, Linn. ; Fort Clark, Neb. 



CORNUS STOLONIFERA, Michx. ; Fort Clark, &quot;Kinnickinnick.&quot; 



SYMPHORICARPUS OCCIDENTALS, R. Br. 



SYMPHORICARPUS VULGARIS, Michx. 



GALIUM APARINE, Linn. 



GALIUM TRIFIDUM, Linn. 



GALIUM TRIFLORUM. Michx. 



GALIUM BOREALE, Linn. 



LlATRIS PUNCTATA. Hook. 

 EUPATORIUM PERFOLIATUM, Linn. 



KUHNIA EUPATORIOIDES, Linn. ; broad-leaved variety. 



ASTER SERICEUS, Vent. 



ASTER MULTIFLORUS, Ait. 



ERIGERON PUMILUM, Nutt. 



ERIGERON C^ESPITOSUM, Nutt.; var. radiis flavidis. This is exactly Nuttall s Erigeron ccespito- 

 sum, or its var. grandifloruw , except 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. & Gray. 



SOLIDAGO MISSOURIENSIS, Nutt. 



SOLIDAGO GIGANTEA, Ait. 



APLOPAPPUS SPINULOSUS, DC. 



APLOPAPPUS LANCEOLATUS, Torr. & Gray. 



GRINDELIA SQUARROSA, Duval. 



CHRYSOPSIS VILLOSA, Nutt. 



SILPHIUM LACINIATUM, Linn. 



SlLPHIUM PERFOLIATUM, Linn. 

 EUPHROSYNE XANTHIFOLIA, Gray. 

 IVA AXILLARIS, Pursh. 



AMBROSIA CORONOPIFOLIA, Torr. & Gray. 

 AMBROSIA TRIFIDA, Linn., and var. INTEGRIFOLIA. 

 XANTHIUM ECHINATUM, Murr. 

 HELIOPSIS L^EVIS, var. SCABRA, Torr. & Gray. 

 ECHINACEA PURPUREA, Mcench. 



ECHINACEA ANGUSTIFOLIA, DC. 



LEPACHYS COLUMNARIS, Torr. & Gra}% and varieties. 



HELIANTHUS PETIOLARIS, Nutt. A diminutive state of this species, common in the collection, 

 is perhaps the H. pumilus of Nuttali. 

 HELIANTHUS RIGIDUS, Desp. 

 HELIANTHUS MAXIMILIANI, Schrceder. 



