122 
IOWA ACADEMY OF SCIENCES. 
A. Novce-Anglice L. 
Tiiriij, borders of woods, common; South Dakota, opposite 
Hfwarden, few specimens near spring (L. H. P.); 
Sioux City (B. W.). 
A, sericeus Vent. 
Sioux Rapids, prairies, Turin, Missouri Valley, abundant 
over loess mounds (L, H. P.); Sioux City (B. W.). 
A. sagittifolms Willd. 
Turin, low grounds (L. H. P.). 
A. ericoides L. 
Turin, low grounds (L. H. P.). 
A. multifvorus Ait. 
Missouri Valley, open places, woods (L. H. P.); Sioux 
City (B. W.). 
A. iKmiculatus Lam. 
Sioux City, bottoms (L. H. P.); A. ptarmicoides, Torr. & 
Gray. Little Rock, prairies (Flerb. C. R. Ball). 
Erigeron Canadensis L. 
Sioux City (B. W.); a weed in fields and pastures through- 
out western Iowa (L. H. P. observations). 
E. strigosus Muhl. 
Rock Valley (W. Newell, J. P. Jensen); Little Rock, 
prairies (Herb. C. R. Bail). 
E. PMladeljAiicus L. 
Hull (W. Newell); Sioux City (B. W.). 
AntennanHa plantaginifolia Hook. 
Sioux City (B. W.). 
SiPphium laciniatum L. 
Council Bluffs, common around loess mounds (L. H P.); 
Sioux City (B. W.). 
S. perfoliatum L. 
Sioux City (B. W.). 
Iva xantl difolia Nutt. 
Sioux City (B. W. , L. H. P.); Onawa L. H. P,); Smith- 
land (J. M. Wrapp). An extremely abundant weed 
everyvfhere in western lov^a, growing luxuriantly ten 
to twelve feet high in streets, vacant lots, dooryards, 
and around neglected buildings, etc. 
Amlorosia trifida L. 
Smithland (J. M. Wrapp); Sioux City (B. W.). A common 
weed along creeks and river courses in western Iowa 
(L. H. R). 
