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[Assembly 
. Order JUNCAGINACE . 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 PISTIACE^. The Duckweed Tribe. 
Lemna, L. Duckweed, Duck^s-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 CYPERACEiE . The Sedge Tribe. 
DuLicHiuM, Rich. 
spathaceum, Pers. Borders of ponds, &c. August-September, 
Cyperus, L. Galingale . 
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, jL. Low moist grounds . August. 
repens. Ell. C. phymatodes, Mulil. Wet sandy places. August. 
filiculmis, Vahl. C. mariscoides, jE//. Dry sterile soils . Sept. 
Grayii, Torr. Sandy fields. Long Island . August-September. 
dentatus, Torr. Sandy wet places . September. 
inflexus, MuJil. 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. 
