40 
THE BOTANY OF THE ROUTE. 
Aralia nudicaulis, Linn. 
CoRNUS sericea, Linn.; Tort Clark, Neb. 
CoRNUS STOLONiFERA, Miclix.; Fort Clark, " Kinnickinnick." 
Symphoeicarpus occidentalis, R. Br. 
Symphoricarpus vulgaris, Michx. 
Galium aparine, Linn. 
Galium tripidum. Linn. 
Galium triflorum, Michx. 
Galium borbale. Linn. 
LiATRis punctata, Hook. 
EuPATORiUM perpoliatum. Linn. 
KuHNiA eupatorioides. Linn. J broad-leaved variety. 
Aster sericeus, Vent. 
Aster multiplorus. Ait. 
Erigeron pumilum, Nutt. 
Erigeron CiESPiTOSUM, Nutt. ; var. radiis flavidis. This is exactly Nuttall' s Erigeron ccespito- 
S7m, or its var. grandiflortim, 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 GIGAXTEA, Ait. 
Aplopappus spinulosus, DC. 
Aplopappus lanceolatus, Torr. & Gray. 
Grindelia squarrosa, Duval. 
Chrysopsis villosa, Nutt. 
SiLPHiUM LACINIATUM, Linn. 
SiLPHIUM PERPOLIATUM, Linn. 
Euphrosyne xanthifolia, Gray. 
IVA AXILLARIS, Pursh. 
Ambrosia coronopifolia, Torr. & Gray. 
Ambrosia trifida, Linn., and var. integrifolia. 
Xanthium echinatum, 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 coliecti 
is perhaps the H. 2')um{lt(s of Nuttall. 
Helianthus rigidus, Desp. 
Helianthus maximiliani, Schroeder. 
Helianthus strumosus. Linn. 
