1889.] NEW-YORK MICROSCOPICAL SOCIETY. 99 



For the same reason given under the last species, this binomial 

 should not be attributed to Robert Brown but to Roemer & 

 Schultes. 



Presque Isle, Erie, Penn., Garber, Mertz ; outlet of Oneida 

 Lake, N. Y., Curtiss ; Paddy's Lake, Oswego Co., N. Y., Wibbe ; 

 Flint, Mich., Clarke ; Swartswood Lake, Sussex Co., N. J., 

 Porter; Johnson's Pond, Dennisville, Cape May Co., N. J., 

 Parker, Diffenbaugh ; Cape May, Brinton ; Milford, Kent Co. 

 and in Newcastle Co., Del., Canby ; Townsend, Del., Commons ; 

 bank of the Schuylkill below Gray's Ferry, Penn. 1863, Porter ; 

 Virginia and Alabama, Buckley ; North Carolina, Curtiss, 

 McCarthy ; New Orleans, La., Ingalls ; Prairies near Indianola, 

 Texas, Ravenel ; ponds, Grand Prairie, Dallas Co., Texas, 

 Reverchon, 1683 ; AUenton, Mo., Letterman ; Hempstead, 

 Texas, E. Hall, 695 ; St. Louis, Mo., Engelmann ; Abbeville, 

 La., Langlois. 



Mexico, Mueller, 1367 ; Guadalahara, Palmer, 1886, No. 431 ; 

 Pringle, 2061 ; Guatemala, Tuerckheim, 1283 (named by me 

 Heleocharis spiralis); Orizaba, Botteri, 756. 



Cuba, Wright, 3376. Santo Domingo, Herb. U. S. Comm. 

 Inquiry, 597. 



Certain of the more northern specimens have larger achenia 

 with more spongy tubercles than those from the south. 



3. E. CELLULOSA, Torr. Ann. Lye. N. Y. iii. 298 (1836). 

 Scirpiis dictyospermus, Sauv. Fl. Cuba. 174 (1868). 



Appalachicola, Fla., Chapman ; Chattahoochee and Duck Key 

 and shore of Pensacola Bay, Fla., Curtiss, 3080 ; Palm Creek, 

 Fla., Curtiss, 183; Miami, Fla.. Garber; Key West, Blodgett ; 

 salt sandy marsh. Bay of St. Louis, La. (the original station), 

 Ingalls ; Ocean Springs, Miss., Tracy ; Rutersville, Texas, and 

 Plantae Texanae, 708, Wright; Flora Texana exsicc, 719, 

 Lindheimer ; Bay of St. Louis, Miss., and Pointe a la Hache, La., 

 Langlois, ^42 ; Mex. Bound. Survey, 1525. Reported also by 

 McCarthy in the Wilmington Flora from North Carolina, but 

 his specimen in Herb. Canby is E. mutata. 



Cuba, Wright, 3763. 



4. E. ROBBiNsii, Oakes in Hovey, Mag. Hort. 1841, i(published 



May 6th). 

 E. tortilis, Torr. 1. c. 314, not of Schultes. 



