126 
IOWA ACADEMY OP SCIENCES, 
S. lanceolatum Gray. 
Little Rock (C. R. Ball). 
APOCYNACE^. 
Apocynum cannabinum L. 
Little Rock (C. R. Ball), Sioux City (B. W.). 
ASGLEPIADACE^, ^ 
Asclejnas tuberosa L. 
Hull (W. Newell), Sioux City (B. W.). 
A. incarnata L. 
Hull (W. Newell), Sioux City (B. W.). 
A. Cornuti Decaisne. 
Sioux City (B. W.), Little Rock (C. R. Ball). 
A. ovalifoUa Decaisne. 
Sioux City (B. W.). 
A. verticillata L. 
Sioux City, loess mounds, common in open places (B. W. , 
L. H. P.); South Dakota, opposite Ha warden, hills; 
Turin, Missouri Valley (L. H. P.); Rock Valley (J. P. 
Jensen and W. Newell). 
Acerates virdiflora Ell. 
Little Rock (C. R. Ball). 
GENTIANACEA]. 
Gentiana jmberula Michx. 
Sioux City, grassy low lands and hills; not common 
(B. W.). 
G. Andrewsii Griseb. 
Sioux City, meadows of Missouri river bottom (B. W.). 
POLEMONlAGEyE. 
Phlox pilosa L. 
Sioux City (B. W.); Little Rock (C. R. Ball). 
P. divaricata L. 
Sioux City, in rich woods (B. W.). 
Poleinonium reptans L. 
Cherokee, in rich woods (B. W.). 
BORRAGINACE.E. 
EcMnospermum Virginicum Lehm. 
Sioux City, woods, along streets and roadsides (B. W.). 
Lithospermum canescens Lehin. 
Sioux City, prairies, and loess mounds (B. W.) 
L. angustifolium Michx. 
Sioux Ciiy, prairie and loess mounds (B. W.). 
