262 
IOWA ACADEMY OF SCIENCES. 
Ranunculus abortions L. Small-flowered Crowfoot. Not 
common. 
R. septentridnalis Poir. Very common everywhere. 
Is op y rum biter natum Torr & Gray. Low, rich soil in 
woods; quite common. 
Aquilegia canadensis L. Wild Columbine. Very com- 
mon everywhere in woods. 
Delphinium tricorne Michx. Dwarf Larkspur. Frequent. 
D. azureum Michx. Prairies. 
D. cirolinianum. Roadside; not common. 
Adcea alba Bigel. White Baneberry. Rare, in woods. 
Menispermace^e. Moonseed Family. 
Menispermum canadense L. Moonseed. Not uncommon 
in rich woods. 
Berberidace^e. Barberry Family. 
Podophyllum peltatum L. May Apple. Common in rich 
woods. 
Papayerace^e. Poppy Family. 
Sanguinaria canadensis L. Blood-root. Very common 
in rich woods. 
Fumariace^e. Fumitory Family. 
Dicentra cucullaria DC. Dutchman’s Breeches. Com- 
mon in woods. 
CrucifertE. Mustard Family. 
Dentaria laciniata Muhl. Toothwort. Frequent in 
w T oods. 
Nasturtium sinuatum Nutt. Not common. 
N. armoracia Fries. Horseradish. Introduced; escaped 
from cultivation. 
Sisymbrium canescens Nutt. Tansy Mustard. Quite 
common; roadside. 
S. officinale Scop. Hedge Mustard. Common along 
roadside. 
Dr aba caroliniana Walt. Whitlow 7 Grass. Rare. Woods. 
Erysimum parviflorum Nutt. Treacle Mustard. Common. 
Brassica nigra Koch. Black Mustard. Fields. Intro* 
duced. 
