369 



same sheet. I passed the plant over in my Preliminary List of 

 North American Species of Cyperus, (BULLETIN, xiii. 205-216), 

 having only the original specimen to go by, and accepting Dr. 

 Torrey's later view. But recently I have had numerous speci- 

 mens from the Northwest and other regions, which maintain the 

 characters of the original, and satisfactorily establish the species 

 as a good one. 



My attention has been especially called to it by Mr. John M. 

 Holzinger, Assistant Botanist to the U. S. Department of Agri- 

 culture, who last year sent me abundant specimens collected by 

 Dr. E. A. Mearns, U. S. A., at Camp Douglas, Wisconsin. I 

 did not then recognize in these Torrey's species, and was disposed 

 to regard the plant as undescribed. Mr. Holzinger has again 

 sent me more and very fine specimens of Dr. Mearns' collection 

 of 1 89 1, and thusby impressing on me the characters of the plant, 

 caused me to make a careful examination of the group to which 

 it belongs. 



The species is nearest C. ScJnvenitzii, but readily distinguish- 

 abte from that plant by its globose, dense heads, smooth culms, 

 'shorter and broader truncate or apiculate scales, and shorter 

 nut. I have it now from the following localities : Lake of the 

 Isles, N. W. Terr., (Houghton No. 73); Camp Douglass, Wise, 

 (Mearns No. 28); St. Croix River, Minn., (Holzinger); Cheboy- 

 gan Co., Mich., (C. F. Wheeler); Wichita, Kans., (Carleton); 

 Columbia River, Sand Island, Oregon, (Thos. Howell); Kuskuski 

 River, (Wilkes Exp.); Wareham, Mass., (Ex. Herb. L. H. 

 Bailey); Lake George, N. Y., (Wm. H. Leggett). It thus ranges 

 all across the continent. I referred the Oregon specimens col- 

 lected by Geyer, which I saw in Herb. Gray to this species in 

 my Preliminary List, but was uncertain about them. They 

 probably belong here. 



The plant which I described in my Preliminary List (p. 208) 

 as C. Schwcinitzii, var. debilis, which extends from Colorado 

 (Redfield) to Chihuahua, is most likely another distinct species. 



Rynchospora saitellata, Griesb. Cat. PL Cub. 246 (1866). 



This species, founded on Charles Wright's No. 3406 from 

 Western Cuba, was collected by the late Mr. H. W. Ravenel on 

 damp prairies near Indianola, Texas, May 3d, 1869, (No. 160), 



