Scirpus CYPERACEAE Fuirena 



S. atrovirens Willd. 



Common, in swamps, meadows and wet roadsides, chiefly in the 

 Piedmont. June to Aug. 



Var. georgianus (Harper) Fern. (*S. georgianus of Gray's Man., 

 ed. 7.) 

 Infrequent; same range as the species. 



S. polyphyllus Vahl. 



Infrequent; swamps and meadows. Piedmont and Coastal 

 Plain. July to Sept. 



S. cyperinus (L.) Kunth. Wool-grass. 



Frequent, in fresh or salt meadows and marshes, chiefly Coastal 

 Plain. Mid-July to early Oct. 



Var. condensatus Fern. 



One known collection: swampy ground along the railroad, 

 y2 mi. s. e. of Harmony (NC), R. R. Tatnall, 4294, 22 July 1939, 

 (T. G). 



H V S. rubricosus Fern. {S. Eriophorum Mx. See Rhodora 47, 124. 

 1945.) Wool-grass. 

 Same habitats as S. cyperinus, but apparently less common. 

 Mid.Aug. to Sept. 



Eriophorum L. Cotton Grass. 

 E. gracile Koch. 



Rare, in bogs, New Castle County: Thompson's Swamp, IJ^ mi. 

 n. e. of New Castle, E. Tatnall, in 1858 (D); McCrone's Swamp, 

 near Farnhurst, Commons, 20 June 1876 (A); in sphagnum, e. of 

 Vandyke, Commons, 7 June 1881 (A). 



E. virginicum L. 



Infrequent; swamps and ditches, Piedmont and Coastal Plain. 

 Aug., Sept. 



Fuirena Rottb. 



F. pumila Torr. (F. squarrosa Mx. See Rhodora 40, 396-398. 



1938.) 

 Infrequent; swampy woods and sandy shores, Sussex County and 

 southward. Aug. to mid-Oct. 



[56] 



