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IOWA ACADEMY OF SCIENCES. 
GERANIACEAE. 
Geranium maculatum L. 
Oxalis violacea L. 
O . stricta L. 
RCTTACEAE. 
Xanthoxylum americanum Mill. Not common. Found on steep 
bluffs along the course of middle river. 
OELASTRACEAE. 
Celastrus scandens L. 
YITACEAE. 
Viiis riparia Michx. 
Ampelopsis quinquefolia Mx. Common in timber. 
SAPINDACEAE. 
Aesculus glabra Willd. 
Acer dasycarpum Ehrb. 
Negundo aceroides Moench. 
ANACAKDIACEAE. 
Rhus glabra JU 
R . toxicodendron L. Rare, in dense timber. 
EEGUMINOSAE. 
Baptisia leucantha T. & G. 
B. leucophea Nutt. 
Lupinus perennis L. Probably fugitive from gardens. 
Trifolium pratense L . 
T. repens L. 
T. hybridum L. 
Melilotus alba Lam. Quite common, only in the western half 
ot the county, where the roadsides are covered with it. 
Medicago saliva L. 
Amorpha canescens Nutt. 
Petalostemon violaceus Michx. 
P. candidus Michx. 
Tephrosia virginiana Pers. 
Astragalus caryocarpus Ker. 
A. cooperi Gray. Not common. 
Desmodium acuminatum DC. Common on Middle river near 
northern boundary of county. 
D. rigidum D. C. 
Lespedeza capitata Michx. 
Amphicarpaea monoica Nutt. Tolerably common in woods. 
Cassia chamaecrista L. Very abundant. 
Gleditschia triacanthos L. Rare. 
ROSACEAE. 
Prunus Americana Marsh. 
P. serotina Ehrh. 
