Il6 ROCHESTER ACADEMY OF SCIENCE. [Oct. 8, 



1066. E. pauciflora Link. {Scirpus pauciflorus Lightfoot.) {Scirpus pauci- 

 florus Lightfoot.] 



Rare. Bergen swamp, Genesee county. Sodus bay, Geo .T. Fish. 

 Wayne county, E. L. Hankenson . 



435. SCIRPUS Tourn. [L.] 



1067. S. caespitosus L. 



Common in Bergen swamp. 



1068. S. subterminalis Torr. 



Wayne county, E. L. Hankenson . 



1069. S. pungens Vahl. {S. Americanus Pers.] 



Shores and swamps ; frequent. A form with 3-cleft style is abundant 

 along the margin of Genesee river a short distance below the lower falls. 



1070. S. lacustris L. (S. validus Vahl.) 



Genesee river, bays, ponds, marshes ; common. 



107 1. S. Smithii Gray. 



Rare. Shore of lake Ontario at the outlet of Braddock's bay, J. B . 

 Fuller. Sodus bay, G. T. Fish . 



1072. S. f luviatilis Gray. [S '. fluviatilis (Torr.) A. Gray.] 



Common in Genesee river, Irondequoit bay, Long pond, etc. 



1073. S. sylvaticus L. var. digynus Boeck. (S. microcarpus Presl.) [S. mi- 



crocarpus Presl.] 



Low, wet grounds ; infrequent. 



1074. S. atrovirens Muhl. 



Low grounds and swamps ; common. 



436. ERIOPHORUM L. Cotton-Grass. 



1075. E. Hneatum Benth. & Hook. {Scirpus lineatus Michaux.) {Scirpus 

 lineatus Michaux.] 



Low grounds ; not common. 



1076. E. cyperinum L. {Scirpus cyperinus (L.) Kunth.] Wool-grass. 



Low grounds ; common. 



1077. E. cyperinum L. var. laxum {Scirpus cyPerinus Eriophormn (Michx.) 



Britton.] 



Low grounds and marshes ; frequent. 



1078. E. alpinum L. 



Wayne county, E. L. Hankenson . 



1079. E. vaginatum L. 



Wayne county, E . L. Hankenson. 



1080. E Virginicum L. 



Sphagnum swamps ; frequent. 



1081. E. Virginicum L. var. album Gray. {E. Virginicum album A. Gray.] 



Mendon, M. S. Baxter. Wayne county, E. L. Hankenson . 



1082. E. polystachyon L. 



Sphagnum swamps ; common. 



