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IOWA ACADEMY OF SCIENCES. 
A. purpurascens L. Purple Milkweed. Dry land; not 
common. 
A. incarnata L. Swamp Milkweed. Wet land; com- 
mon. 
A. cornuti Decaisne. Common Milkweed or Silk-weed. 
Fields; very common. 
A. verticillata L. Woods and fields; quite common. 
Acerates viridiflora- var. linearis Gray. Prairies; common. 
Gentianace^e. Gentian Family. 
Gentiana andrewsii Griseb. Closed Gentian. Low grounds; 
rare. 
Polemoniace^e. Polemonium Family. 
Phlox pilosa L. Prairie Sweet William. Prairies; 
common. 
P. divaricata L. Timber Sweet William. Rich woods; 
common. 
Polemonium reptans L. Greek Valerian. Rich woods; 
not common. 
Hydrophyllace^e. Waterleaf Family. 
Hydrophyllum virginicum L. Woods; common 
R. append iculatum Michx. Damp woods; frequent. 
Ellisa nyctelea L. Low damp shady places; common. 
Borraginace^e. Borage Family. 
Gynoglossum officinale L. Common Hound’s Tongue. 
Waste places; quite common. 
Echinospermum virginicum Lelim. Beggar’s Lice. Woods; 
common. 
Mertensia virginica DC. Blue Bells. Lungwort. Vir- 
ginian Cowslip. Woods; rare. Jefferson township. 
Lithospermum canescens Lehm. Puccoon of the Indians. 
Prairies and woods; very common. 
L. hirtum Lehm. Same as above. 
Onosmodium carolinianum DC. False Cromwell. Open 
woods; common. 
CoNvoLvuLAGEiE. Convolvulus Family. 
Ipomoea hederacea Jacq. Morning Glory. Waste and 
cultivated ground; common. 
