IOWA ACADEMY OF SCIENCES. 
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A. artemisiaefolia L. 
Alton, Turin (L II . P.); Sioux City (B. W.). A common 
weed in cultivated fields, pastures, meadows, along 
roadsides, vacant lots, and railroads. 
A. j^silostachya DC. 
Council Bluffs, comnion weed along creeks and river 
courses in v/estern Iowa (L, H. P.). 
Xanthiuin Ganadense Mill. 
Sioux City, Turin (L. II. P.). In alluvial soil very abun- 
dant and weedy. South. Dakota, opposite Hawarden, 
bottoms of Big Sioux river (L. II. P.). 
Heliopsis scabra Dunal. 
Sioux City (B. W.); Hull {YL Newell); Battle Creek, in 
woods (E. G. Preston); Little Rock (Herb. C. R. Ball). 
Echinacea angustifolia DC. 
Sioux City (B. W.); Hull (W. Newell); Battle Creek, 
abundant prpfiries (E. G. Preston); Council Bluff’s, 
Logan (L. H. P ); Little Rock (Herb , G. R. Ball). 
Rudbeclcia laciniata L. 
South Dakota, opposite Hawarden in woods abundant (L. 
H. P.); Sioux City (B. W.). 
R. triloba L. 
Onawa, low grounds, common (L. H. P.) 
R. hirta L. 
Sioux City (B. W.) Little Rock (Herb. C. R. Ball ). 
Lepachys pinnata Torr. & Gray. 
Sioux City (B. W.) Council Bluffs (L. H. P.). 
Helianthus cmnuus L. 
Sioux City (B. W.); Hawarden (L. H. P.); Onawa, Mis- 
souri Valley, (L, H. P.). A common weed everywhere 
in western Iowa, flood plains, Missouri tmd Big Sioux 
rivers, streets and dooryards. (L. II. P.). 
H. rigidus Desf. 
Hawarden (L H, P.); Sioux City (B. W.). 
H. grosse-serratus Martens. 
Sioux City, abundant in alluvial bottoms of Missouri river, 
and along river courses, creeks (L. II. _P., B. W.); Onawa, 
Turin. One of the m.ost conspicuous plants in September. 
H. Maximiliani Schrad. 
Sioux Citj/, Loess hills along the Missouri and Big Sioux 
rivers. Alton, Sioux Rapids, Hawarden, occasionally in 
alluvial bottoms at Whiting; also observed near Brad- 
gate further east (L. H. P.). 
