ISO 



IOWA ACADEMY OF SCIENCES. 



Lithospermuni canescens , 

 Castilleia sessiliflora . 



Lithosperfftuni avgustifolium . 



Of the later blooming plants- 



Anetnone cylindrica , 

 Lepidiuvi apeialum, 

 Verbefta bracteosa, 

 Rutnex acetosella, 

 Poa cornpressa, 

 Achillea millefolium. 

 Lobelia spicata, 

 Antennaria plantagi7iifolia . 



Delphinium, azureum, 

 Phlox pilosa, 

 Hedeoma hispida, 

 Poa tratensis. 

 Echinacea anf;ustifolia , 

 Troxinion cuspidatum (rare) 

 Erigeron stngosus. 



Of the June and July plaiits- 



Asclepias verticillata, 

 Petalosleuwn violaceus , 

 Erigeron divaricatus, 

 Potentilla arguta, 

 Solidago Rlissouriensis, 

 Verbena stricta, 

 Panicton pubescens. 



Psoralea argophylla , 

 Petalostemon candidtis ^ 

 Cassia Chamtrcrista , 

 Liatris cylindrica , 

 Coreopsis palmata, 

 Euphorbia corollala. 



Of the shrubs we may mention- 



Ceanothus ovatus, 



Rosa blanda var. Arkansana . 



Rhus glabra , 

 Amorpha canescens . 



The shrubs in the drift hills are not much more con- 

 spicuous than near Woodbine and Missouri Valley. 

 August and September list. 



Solidago rigida. 

 Aster sericeus , 

 Ambrosia psilostachya , 

 Cnicus discolor^ 

 Panicum capillare, 

 Andropogon scoparius , 

 Sporobolus asper. 



Solidago nemoralis , 

 Aster tnulti f torus , 

 Heliopsis scabra , 

 Artemisia caudata. 

 Euphorbia tnaculata , 

 Bouteloua hirsuta , 

 B. racemosa , 

 Panicum I'irgatum , 

 Aristida basiramea. 



