Cyperus CYPERACEAE Cyperus 



1865 (A); weed in garden, Eastville (No), Fogg, 10061, 16 Oct. 

 1935 (P). 



A southern species. 



C. esculentus L. 



Common; low ground, stream banks, beaches and waste places, 

 Piedmont and Coastal Plain. July to mid-Oct. 



C. erythrorhizos Muhl, 



Infrequent; alluvial soil and sandy shores. Mid- Aug. to mid- 

 Oct. 



V" C. odoratus L. (C. ferax of Gray's Man. , ed. 7.) 



Frequent on stream banks, beaches and low ground, often in 

 brackish soil, Coastal Plain. Aug., Sept. 



C. Engelmanni Steud. 



Rare, in wet sandy places: Clothier's (Drummond's) Mill (NC), 

 Commons & Tatnall, 9 Oct. 1896 (D) ; border of pond in sandy woods, 

 Savage Neck (No), Fernald, Long cfc Fogg, 5228, 15 Oct. 1935 

 (A,T). 



A northern species. 



il C. strigosus L. 



Common throughout, in ditches, marshes and swampy woods. 

 Aug., Sept. 



C. refractus Engelm. 



Rare, in dry soil: Bald Friar (Ce), J. Crawford, 30 July 1924 (A). 



C. lancastriensis Porter. 



Rather rare, in open ground and dry pine woods, Piedmont and 

 Coastal Plain: Grove Neck, near Grove Point (Ce), Long, 45022, 

 13 Oct. 1934 (A); same locality, R. R. Tatnall, 3931, 3 Sept. 1938 

 (T); Kiptopeke (No), dry pine woods, Fernald, Long & Fogg, 5229, 

 12 Oct. 1935 (P); roadside near Rowlandsville (Ce), R. R. Tatnall, 

 5231, 10 Oct. 1945 (T, A). 



C. retrofractus L. (C. hystricinus Fern., in Rhodora 47, 110-113. 



1945.) 



Rare, in dry sand: Sahsbury (Wi), 7. S. Moyer in 1867 (A); 



same, Canhy, Sept. 1887 (P), and July and Aug. 1893 (D); Wherry 



& Pennell, 3-4 Sept. 1925 (A); near Sharptown (Wi), Otis in 1914 



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