182 [Assembly 



Order JUNCAGINACEtE . The Arrow-Grass Tribe. 



Triglochin, L. Arrow Grass. 



palustre, L. Marshes. Near Buffalo, Dr. Kinnicut. Salina. 

 maritimum, L. Salt marshes, near New-York and Salina. July, 

 elatum, Nutt . Marshes . Gorham, Dr. Aikin . Near Bridge- 

 water, &c. Dr. Gray. June-July. 



SCHEUCHZERIA, L. 



palustris, L. Sphagnous swamps ; western and northern counties. 

 July . Near Albany, Dr. Beck . 



Order PISTIACEiE . The Duckweed Tribe. 



Lemna, L. Duckweed, Ducks-meat. 



polyrrhiza, L. Ditches and stagnant Waters . 



gibba, L. Near Liverpool, Onondaga county . Pursh < 



minor, L. Stagnant waters . 



trisulca, L. Ditches and ponds . July . 



Order CYPERACE.E . The Sedge Tribe. 



Dulichium, Rich. 



spathaceum, Pers. Borders of ponds, &c . August-September. 



Ctpertjs, L. GaJingale . 



flavescens, L. Boggy places, especially near salt water. August- 

 September . 



diandrus, Torr. Wet places, near salt water . September . 

 Var. castaneus, Torr. Muddy and sandy shores. August- 

 September . 



Nuttallii, Torr. Borders of salt marshes . August. 



Michauxianus, Schultz. Borders of salt marshes . August . 



strigosus, L. Low moist grounds . August. 



repens, Ell. C. phymatodes, Muhl. Wet sandy places. August. 



filiculmis, Vahl. C. mariscoides, Ell. Dry sterile soils . Sept. 



Grayii, Torr. Sandy fields, Long Island. August-September, 



dentatus, Torr. Sandy wet places . September . 



inrlexus, Muhl. C. uncinatus, Pursh. Sandy banks of rivers and 

 lakes, north and west of Albany. Albany. Aug. 



Schweinitzii, Torr. Sandy shore of Lake Ontario, near Brad- 

 dock's Bay. Dr. Bradley. 



