IOWA ACADEMY OF SCIENCES 
117 
The Iowa specimen in the writer's herbarium was collected in Emmet 
county, June 19, 1904, by R. I. Cratty, who also reports the species from 
Kossuth and Webster counties. In Iowa the species is quite rare. 
Iowa specimens were first collected by Mr. Cratty in about the year 1882. 
Arthur, J. C. Proceedings of the Davenport Academy of Natural Sciences, 
Vol. 4, p. 28, 1884. 
Upham, Warren. Catalogue of the Flora of Minnesota, p. 148, 1884. 
Cratty, R. I. Proceedings of the Iowa Academy of Sciences, 1908, Vol. 11, 
p. 215, 1904; The Iowa Naturalist, Vol. 1, No. 4, p. 72, October, 1905. 
3. JuNcus TENUIS V/illd. Sp. PI. 2: 214. 1799. 
Stems tufted, 6 — 30 inches high; basal leaves about one-half a line 
in width, approximately half the length of the stem; stem leaves none; 
inflorescence 1 — 4 inches high, its low’-er leaf 3 or 4 times longer, the 
upper leaf twice as long; perianth about two lines long, the parts lanceo- 
late, acuminate, divergent, scarious-margined; stamens 6, one line or 
more long; anthers shorter than the filaments; capsule oblong to obovoid, 
shorter than the perianth, rounded at the top, partially 3-celled; seeds 
small, narrowly oblong to obovoid, reticulated in about 16 rows, with 
oblique ends. 
This cosmopolitan species is common in dry soil in grassy or waste 
places, blooming and developing throughout the summer. Type locality: 
''HaMtat in AmA’ica boreali.” 
Specimens in the writer’s herbarium are from Winneshiek, Johnson, 
Decatur, Osceola, Union, Pottawattamie, Shelby and Story counties. The 
species was noted in Allamakee, Dubuque, Jackson, and Emmet counties. 
The State University herbarium has specimens from the additional coun- 
ties of Lyon, Dickinson, Cerro Gordo, Hancock, Winnebago, Scott and 
Linn. Professor Pammel reported the species from Woodbury county; 
Professor Fink from Fayette county; Barnes, Reppert and Miller from 
Scott and Muscatine counties; Cratty from Webster, Kossuth, Bremer, 
Louisa and Iowa counties; and Peck from Hardin county. 
Bessey, C. E. Fourth Biennial Report of the Iowa State Agricultural Col- 
lege, p. 128, 1872. • 
Arthur, J. C. Contributions to the Flora of Iowa, p. 32, 1876. 
Hitchcock, A. S. Transactions of the Academy of Science of St. Louis, Vol. 
5, p. 521, 1892. 
Pammel. L. II. Proceedings of the Iowa Academy of Sciences, 1892, Vol. 1, 
part 3, p. 60, 1893 ; Vol. 3, 1895, p. 134, 1896 ; Vol. 9, 1901, p. 170, 1902. 
Shimek, B. Proceedings of the Iowa Academy of Sciences, 1896, Vol. 4, p. 
75, 1897 ; Iowa Geological Survey, Vol. 10, p. 184, 1900. 
Fitzpatrick, T. J. Proceedings of the Iowa Academy of Sciences, 1897, Vol. 
5, p. 130, 1898. 
Fitzpatrick, T. J. and M. F. L. Proceedings of the Iowa Academy of Sciences, 
1897, Vol. 5, p. 166, 1898 ; Vol. 6, 1898, p. 198, 1899. 
Barnes, W. D. ; Reppert, Fred ; and Miller, A. A. Proceedings^ of the 
Davenport Academy of Sciences, Vol. 8, p. 262, 1900. 
Cratty, R. 1. Proceedings of the low'a Academy of Sciences, 1903, Vol. 11, 
p. 215, 1904 ; The Iowa Naturalist, Vol. 1, No. 4, p. 72, October, 1905. 
Peck, Morton E. Proceedings of the Iowa Academy of Sciences, 1904, Vol. 
12, p. 203, 1905. 
