116 
IOWA ACADEMY OP SCIENCES. 
Melilotus officinalis Willd. 
Sioux City (B. W.), Council Bluffs (L. H. P.). 
31. alba Lam. 
Sioux City, along railroads, in streets, fields and roadsides, 
abundant (L. H. P. and B. W.), Onawa, Turin (L. 
H. P.). 
3Ieclicago saliva L. 
Sioux City, in streets; not common, Council Bluffs (L. H. P.). 
HosacMa Fursliiana Benth. 
Sioux City, loess mounds (B. W.). 
Psoralea argojoJiylla Pursh. 
Sioux City, adundant on loess mounds (B. W.), high 
prairies and low, rich soil; Little Rock (Herb. C. R. 
Ball), Hull (W. Newell). A typical prairie plant, com- 
mon throughout Iowa on dry hills. 
Amorpha canescens L. 
Sioux City, bottom.s (B. ¥/.), Missouri Valley (L. H. P.). 
Dalea alopecuroides Nutt. 
Near Lake Okoboji (B. W.), Missouri Valley, Sioux City, 
loess mounds; abundant; Hawarden, in open grounds 
(L. H. P.), Hamburg (Hitchcock Bot. Gazette, XIV, 
128). 
D. laxiflora Pursh. 
Sioux City (B. W.). The species is abundant on the loess 
mounds about Sioux City, Missouri Valley and Turin, 
producing a long and thick root. Hamburg (Hitch- 
cock, Bot. Gazette, XIV, 128). 
Petalostemon violaceus Michx. 
Sioux City abundant on loess hills (B. W., L. H. P.); Hull 
(W. Newell); South Dakota opposite Hawarden dry 
hills (L. H. P.); Logan (L. H. P.); Battle Creek (E. G. 
Preston); Little Rock (C. R. Bali); Council Bluffs dry 
hills (L. H. P.); Missouri Valley, Turin, loess hills (L. 
H. P.). On loess mounds, usually with shorter heads 
than commonly found on prairies. 
P. candidus Michx. 
Sioux City, hills loess abundant; L. H. P. South Dakota 
opposite Hawarden (L. H. P.); HulL(W. Newell); Bat- 
tle Creek (E. G. Preston); Little Rock (Herb. C. R. 
Ball;) Council Bluffs, Turin, Missouri Valley, on loess 
mounds, shorter heads and smaller plants than com- 
monly found on prairies. 
