CYPERACEAE 



Cyperus sabulosus Mart, and Schrad. Rare in waste ground. Native of 

 Virginia and South. Introduced at Plattsdale. 



Cyperus Holghtoni Torr. Rare in dry sandy pine barrens. South River- 

 head. I can find no previous record for Long Island. 



Eleoch.xris interstinct.v (\'ahl.) R. and S. \'ery rare in ponds. Big Long, 

 Little Long, and Round Ponds, Sag, Harbor, (Latham and P'erguson). 

 I can find no previous record for Long Island. 



SciRPUS MICROC.ARPUS Presl. (S. rubrolinctus Fernald). \'ery rare in swamps. 

 Kissena, Flushing. 



Fi'iREN.\ SQU.\RROS.\ Michx. Rare in swamps and borders of ponds. Fore 

 and Aft, and Round Ponds, and Little North West Swamp, Sag Harbor 

 (Latham and Ferguson); Long and Lily Ponds, Sag Harbor; Poxa- 

 bogue Pond, Bridgehampton. 



PsiLOCARV.\ SCIRPOIDES Torr. Rare in wet sandy shores or shallow water. 

 Lily Pond, Sag Harbor; Poxabogue Pond, Bridgehampton. Discovered 

 two weeks earlier than my find at a pine barren pond in Calverton by 

 Mr. Roy Latham. 



ScLERiA TRiGLOMERATA Michx. Rare in moist soil. Lindenhurst; Merrick. 



ScLERiA ToRREVANA Walp. \'ery rare in sandy swamps and shores. Poxa- 

 bogue Pond, Bridgehampton. Growing with 5. reticularis, but very 

 distinct in appearence. 



Carex ROSEA Schk. Rare in wet or rich woods. Deer Park; Kew Gardens. 

 C. convoluta Mackenzie, is the common species of this group on Long 

 Island. 



Carex trisperma Dewey, var. Billingsii Knight. Rare in sphagnum 

 swamps and thickets. Speonk; Babylon. The plant published in my 

 second paper from south of Flanders as this species is also var. Billingsii. 



Carex exilis Dewey. Rare in sw^amps. Shinnecock. 



Carex cristatella Britton. Rare in swamps and wet woods. Laurelton; 

 North Beach; Winfield. 



Carex projecta Mackenzie. \"er>- rare in swamps. Winfield. 



Carex Crawfordii Fernald. \'er\- rare in sandy and gravelly soil. Long 

 Beach Road. I can find no previous record for Long Island. 



Carex Bebbii Olney. \'er\- rare in swamps. Winfield. I can find no pre- 

 vious record for Long Island. 



Carex tenera Dewey.'* Rare in swamps. Winfield; Woodside. I can find 

 no previous record for Long Island. 



Carex alata Torr. Rare or occasional in swamps. Winfield; Woodside; 

 South Jamaica; South of Ozone Park; Wading River; Riverhead; Mon- 

 tauk; Three Mile Harbor (Latham and Ferguson); Sag Harbor (Latham 

 and Ferguson). 



Carex leucorum Willd. Rare in dr\' soil. Rockville Center; Middle Is- 

 land; Massapequa; Babylon. 



Carex pol\'>iorpha Muhl. Verv^ rare in dn,- and moist soil. Hempstead 

 Reserv'oir; Laurelton; Seaford. 



* Mackenzie, K. K. Bull. Torrey Club 42: 606-608. 1915. 



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