IOWA ACADEMY OF SCIENCES. 
‘239 
159; Pammel, Weed Pests, Bull. Ia. Agrl. Exp. Sta. 13: 72; 
Notes on Some Intr., PL 114; Some Obnoxious Weeds, 
445, pi 3; Weeds of Cornfields 41, 2 /.; Halsted, Prel. List 
Ia. Weeds. 42; Fitzpatrick, FI. N. E. Ia. 120. 
BIBLIOGRAPHY PERTAINING TO IOWA SPECIES. 
Arthur J. C., Contributions to the Flora of Iowa. A catalog of the 
Pbanrogamaus plants. 1:43, 1870, Charles City. 
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Barnes W. D., Reppert Ferd, Miller A. A., The Flora of Scott and Mus- 
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Fink Bruce, Spermaphyta of the Flora of Fayette. Ia. Proc. Ia. Acad. 
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Acad. Sci. 5: 107-133. 
. T. J. &M. F. L., Flora of Southwestern Iowa. Proc. Ia. Acad 
of Sci. 5: 134-173. 
Halsted Byron D., Preliminary List of Iowa Weeds, Bull. Dept, of Bot. 
Agrl. Coll. 1888: 36-54. 1888. 
. Time of First Blooming of Spring Plants, Bull. Dept, of 
Bot. Ia. Agrl. Coll. 1886:48-52. 1886. 
Nagel J. J. & Haupt J. G. , List of Phaenogamous Plants collected in 
the Vicinity of Davenport, Iowa. Proc. Davenport Acad, 
of Sci. 1: 153. 
Hitchcock A. S., Catalogue Authophyta and Pteridophyta of Ames, 
Iowa. Trans. Acad. Sci. St. Louis. 5: 477-532. 
Pammel L. H. Notes on the Flora of Western Iowa. Proc. Ia. Acad, of 
Sci., 3: 106-135. Contr. Bot. Dept. I. S. C. of Agrl. & 
Mch. Arts. 1. 
. Weeds of Cornfields. Bull. Agrl. Exp. Sta. I. S. C., Agrl. 
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. Weed Pests. Bull. la. Agrl. Exp. Sta. 13: 72. 
— . Some obnoxious weeds of Iowa. Rep. Ia. State Agl. Soc. 
436—450. 4 pi. I. f. 
