IOWA ACADEMY OF SCIENCES. 153 



Two general localities are represented, viz., the Missouri 

 river valley, near Sioux City, and the region about Davenport 

 and Muscatine. This latter place is noted for a flora present- 

 ing many southern species. The herbarium of the State uni- 

 versity contains a specimen collected by Professor Shimek, in 

 the northwest corner of Lyon county, which is also the extreme 

 northwest corner of Iowa. The leaves of this, though imma- 

 ture, approach very closely to those of S. Missouriensis. It 

 probably occurs along the entire reach of the Missouri river 

 which borders Iowa on the west. 



Sioux Olty, Plymouth Oo. 19. Pammel; Davenport. 39. SMmik, S .U. I.; Blue Grass, 

 Scott Co. 40. Miss Benshnof (No. 3). 



XIV. SALIX MYRTILLOIDES L. 



Salix myrtilloides L. Sp. Plant. 1019, 1753. 



The pretty little bog willow is very rare in Iowa, having 

 been found in but a single locality near Armstrong, Emmet 

 county, by Mr. R. I. Cratty. It is an inhabitant of cold bogs 

 and becomes much more common even in the slightly higher 

 latitude of the Minnesota river valley. It grows to a height of 

 from one to three feet, and may be easily recognized by the 

 manual descriptions. The staminate aments are slender, but 

 the fertile aments in fruit are nearly as broad as long. The 

 staminate aments were collected on May 9, 1883, the mature 

 pistillate aments on June 9, 1883, and the mature leaves on 

 August 4, 1884. 



Armstrong, Emmet Oo. 5. Cratty. 



BIBLIOGRAPHY 



Arthur, J. C. Contribution to the flora of Iowa. 29. 1876. 



Arthur, J. C. Contribution to the flora of Iowa. Proc. Dav. Acad. Nat. 

 Sci. 2: 126. My 1877. 



Arthur, J. C. Contribution to the flora of Iowa. V. Proc. Dav. Acad. 

 Nat. Sci. 4: 27-30. Je 1882. 



Cameron, J. E. Forest trees of Delaware county. Iowa Geol. Surv. 8: 

 193-199. 1897. 



Fink, B. Spermaphyta of the flora of Fayette, Iowa. Proc. Iowa Acad. 

 Sci. 4: 81-107. 1896. 



Fitzpatrick, T. J. Forest trees and shrubs of Decatur county. Iowa 

 Geol Surv. 8: 309-314. 1897. 



Fitzpatrick, T. J. Notes on the flora of northeastern Iowa. Proc. la. 

 Acad. Sci. 5:107-133. 1897. 



Fitzpatrick, T. J. and M. P. L. Flora of southern Iowa. Proc. la. 

 Acad. Sci. 5:134-173. 1897. 



Hitchcock, A. S. Catalogue of the Anthophyta and Pteridophyta of 

 Ames, Iowa. Trans, to St. Louis Acad. Sci. 5:477. 4 F 1891. [Contr. 

 Shaw School Botany, No. 7.] 



