57 



Potamogeton zosterisefolius, Schum. (P. compressus, L.) . . Pond- 

 weed. 



Niagara River. 



Potamogeton Niagarensis, Tuokerman Pondweed 



"Rapids above the Falls." Gray's Manual, {5th Ed.) p. 481). 

 Rediscovered, after many years, in L886, in the old mill-race 

 above the Falls, on the American side, by the Rev. Thomas 

 Morong. 



Potamogeton pauciflorus, Pursh Pondweed 



Niagara River. 



Potamogeton pusillus, L Pondweed 



Niagara River. 



Potamogeton pectinatus, L Pondweed 



Niagara River. 



Potamogeton Robbinsii, Oakes Pondweed 



Niagara River. 



I Note. — It is Dot asserted that all the species of Potamogeton, above 

 earned, have yet been detected in the immediate vicinity of the Falls, bul 



as they all occur more or less abundantly in the upper portion of the River 

 (except as noted), they may well be expected nearer the Falls.] 



CYPERACE^. 



Cyperus diandrus, Torr Galingale 



vor. castaneus, Torr. 



Goat Island, on the east side, uear the River. 



Cyperus esculentus, L. {Cyperus phymatodes, Muhl.) . .Galingale 



Goat Island near the River. 



Cyperus strigosus, L Galingale 



Wet places near Clifton, Ontario. 



Cyperus filiculmis, Vahl., has probably been overlooked. 



Dulichium spathaceum, Richard Dulichium 



Wet places near Clifton, Ontario. 



Eleocharis ovata, R, Br. {Eleocharis obtusa, Schult.) . . Spike Rush 

 Near the shores of the River above the Falls. 



Eleocharis palustris, R. Br Spike Rush 



With the last and growing in the water. 



Eleocharis tenuis, Schult Spike Rush 



Damp places above the Falls. 



Eleocharis acicularis, R. Br Spike Rush 



Shores of the River above the Falls on either side. 

 8 



