44 
BOTANY OF THE ROUTE. 
Aralia nudicaulis, Linn. 
Cornus sericea, Linn.; Fort Clark, Neb. 
Cornus stolonifera, Michx.; Fort Clark, “ Kinnickinnick. ,, 
Symphoricarpus occidentalis, R. Br. 
Symphoricarpus vulgaris, Michx. 
Galium aparine, Linn. 
Galium trifidum, Linn. 
Galium triflorum, Michx. 
Galium boreale, Linn. 
Liatris punctata, Hook. 
Eupatorium perfoliatum, Linn. 
Kuhnia eupatorioiues, Linn. ; broad-leaved variety. 
Aster sericeus, Yent. 
Aster multiflorus, Ait. 
Erigeron pumilum, Nutt. 
Erigeron c^espitosum, Nutt.; var. radiis flavidis. This is exactly Nutt all’s Erigeron ccespito- 
sum , or its var. grandiflorum, 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 trifid a, Linn., and var. integrifolia. 
Xanthium echinatum, Murr. 
Heliopsis LiEVis, 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 collection, 
is perhaps the H. pumilus of Nuttali. 
Helianthus rigidus, Desp. 
Helianthus maximiliani, Schrceder. 
