PERNALD. — ELEOCHARIS OVATA. 493 



somewhat smaller, with the tubercle about three sevenths its height. — In 

 damp sandy soil or exsiccated places, probably throughout the range of 

 the species. Maine, sandy intervale, Milo Junction, Sept. 12, 1896 

 {M. L. Fernald, no. 2838) ; river margin, Oldtown, Sept. 7, 1898 

 {M. L. Fernald, no. 2721); sandy shore, Orono, Sept. 7, 1893 {M. L. 

 Fernald) ; damp sandy ground, North Berwick, Sept. 25, 1897 (/. C. 

 Parlin & M. L. Fernald) : Neav Hampshire, Mascoma River, Lebanon, 

 Aug. 19, 1890 (G. G. KennediJ): Vermont, Middlebury, Sept. 21, 

 1878 {^Ezra Brainerd) : Massachusetts, shore of North Reservoir, 

 Winchester, Oct. 6, 1894 {W. P. Rich); Milton, Sept. 25, 1881 {C. W. 

 Swan); Blue Hills, Sept. 29, 1894 ( TF. H. Manning); Great Pond, 

 South Weymouth, Sept. 19, 1891 (IT. P. Rich); without locality 

 {Morong) : Rhode Island, South Kingston, Aug. 3, 1847 (S. T. 

 OlneAj) : Illinois, Jackson Co., July 16, 1873 ( G. H. French). Various 

 specimens, as a sheet in the herbarium of the New England Botanical 

 Club from Revere, Mass. {Young), a taller but slender small-headed 

 plant from Framingham, Mass. {E. C. Smith), specimens from Harlan 

 County, Kentucky (^Kearney, no. 27), and from Indian Territory {Bush, 

 nos. 632, 633), connect this variety directly with typical E. ohtusa. 



Var. gigantea. — Figs. 11, 12. — Culms stout and tall, 5 to 8 dm. 

 high : heads ovate-oblong, 9 or 10 mm. long, 5 mm. broad: scales ovate, 

 dark brown : achene as large as in the species, the broad obcordate tuber- 

 cle not depressed, about five eighths as high as the achene. — E. ovata, 

 var. gigantea, Clarke in Britton, Jour. N. Y. Microsc. Soc. v. 103 

 (nomen nudum). E. obtusa, Watson, Bot. Calif, ii. 222, in part, not 

 Schultes. — Cascade Mts., "Oregon" (i. e. Washington), 49° N. Lat., 

 1859 {Lyall) ; bogs near New Westminster, British Columbia, Aug. 28, 

 1893 {Macoun., no. 7557). A low more slender and smaller-headed 

 plant collected by Mr. Howell in Multnomah County, Oregon, July, 

 1877 (no. 409), and by Professor Macoun at Agassiz, British Columbia, 

 May 20, 1889, has the smaller achene capped by a large tubercle, thus 

 connecting this variety with the typical form of the species. 



++ ++ Heads lanceolate : scales pale, acute. 



E. lanceolata. — Figs. 27 to 29. — Culms slender, almost capillary, 

 erect, 2 dm. high : heads 5 to 8 mm. long, 2 mm. broad, acutish : the 

 hyaline green-ribbed scales subappressed : achene broadly obovate, with a 

 scarcely depressed tubercle one half its height. — Collected in central 

 Arkansas, July, 1882 {F. L. Harvey, no. 8). 



