202 



Cyperaceae 



Eleocharis 



o IS 



Map 388 



Eleocharis Engelmanni Steud. 



~30 



Map 389 



Eleocharis S ma 1 1 If Britton 



Map 390 



Eleocharis calva Torr. 



o ~50 



Map 391 

 Eleocharis aciculan's R.&S. 

 var. typica Swenson 



Jan. 

 Feb. 

 Mar. 

 Apr. 



May 

 June 

 July 

 Aug. 

 Sept. 

 Oct. 

 Nov. 

 Dec. 



~^5 



Map 392 



Eleocharis Wolfii A.Gray 



Miles 



10 



Map 393 

 Eleocharis melanocarpa Torr. 



9a. Eleocharis Engelmanni f. detonsa (Gray) Svenson. (Eleocharis 

 Engelmanni var. detonsa Gray.) My specimen was collected in a field 2 

 miles northwest of Culver on the muddy border of a pond, where it was 

 frequent. Also collected by E. J. Hill in La Porte County. 



Mass., Pa., Mich., Ind., 111. and Ariz. 



10. Eleocharis Smallii Britton. (Eleocharis palustris in part, of Gray, 

 Man., ed. 7 and of Indiana authors.) Small's Spikerush. Map 389. In 

 muddy, peaty or wet, sandy places in ditches, sloughs, ponds, marshes, and 

 like habitats on the borders of streams and lakes. 



Sw. N. S. to Mich, and Nebr., southw. to Del., Pa., Ind., 111., and Mo. 



11. Eleocharis calva Torr. (Eleocharis palustris var. calva (Torr.) 

 Gray and Eleocharis palustris var. glaucescens of Indiana authors.) Map 

 390. In muddy, sandy or peaty soil in ditches, sloughs, and marshes and 



