340 
IOWA ACADEMY OF SCIENCE Vop. XXIX, 1922 
40. Caryophyllaceae 
Silene nivea 
Silene antirrhina 
45. Ranunculaceae 
Clematis viorna 
Anemone caroliniana 
Anemone virginiana 
Actaea rubra 
Actaea alba 
57. Lauraceae 
Benzoin odoriferum 
67. Cruciferae 
Cardamine rhomboidea 
Sisymbrium canescens 
Draba caroliniana 
72. Saxifragaceae 
Heuchera Richardsonii 
Ribes Missouriense 
81. Rosaceae 
Spiraea opulifolia 
Potentilla arguta 
Fragaria virginiana 
Rosa lucida 
Rosa blanda 
Crataegus coccinea, var. 
mollis 
Pyrus coronaria 
83. Eeguminosae 
Phaseolus diversifolius 
Eespedeza capitata 
Astragalus caryocarpus 
Tephrosia virginiana 
Amorpha canescens 
Psoralea argophylla 
Trifolium reflexum 
Baptisia leucantha 
Baptisia leucophaea 
Cercis canadensis 
Cassia chamaecrista 
85. Geraniaceae 
Geranium carolinianum 
86. Oxalidaceae 
Oxalis violacea 
88. Einaceae 
Einum rigidum 
101. Polygalaceae 
Polygala purpurea 
Polygala incarnata 
Polygala verticillata 
103. Euphorbiaceae 
Euphorbia platyphylla 
Euphorbia corollata 
Pilinophytum capitatum 
109. Anacardiaceae 
Rhus aromatica 
July, ravines, Davenport, Iowa 
June, dry soil and exposed rocks 
June 9, banks of Mississippi, Daven- 
port, Iowa 
May 3, banks of Mississippi 
July, woods 
May, woods and copses 
with preceding 
Southern Iowa 
May, wet places on prairies 
May, pastures and river banks, Dav- 
enport, Iowa 
April, dry and exposed banks of 
Mississippi, Davenport, Iowa 
June, dry rolling prairie 
borders of streams 
June, rocky river banks 
June, dry prairie 
Fields and prairies 
May, dry soil 
May, prairie 
May, Davenport 
Apr., Davenport, banks of Mississippi 
August, gravelly banks of Mississippi, 
Davenport 
August, dry prairies 
May, gravelly ridges in the interior 
July, sandy soil, Davenport 
July, rocky crevices, dry soil 
July, high prairies 
June, low grounds 
July, rich soil, Davenport 
May, dry prairies 
Apr., banks of Mississippi, Davenport 
July, sandy soil 
May, waste places 
May, dry banks 
July, high prairies 
July, wet and rather barren places 
dry soil, interior 
dry hills 
dry fields 
dry prairies 
August, streets of Davenport 
June, sandy shore of Red Cedar river 
