57 
Potamogeton zosterizfolius, Schum. (P. compressus, L.)..Pond- 
weed. 
Niagara River. 
Potamogeton Niagarensis, Tuckerman............ Pondweed 
“Rapids above the Falls.” Gray’s Manual, (6th Ed.) p. 489. 
- Rediscovered, after many years, in 1886, 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......................05. Pondweed 
Niagara River. | . 
Potamogeton pectinatus, L...................... Pondweed 
Niagara River. | 
Potamogeton Robbinsii, Oakes..............00 000005 Pondweed 
Niagara River. 
[Norr.—It is not asserted that all the species of Potamogeton, above 
named, have yet been detected in the immediate vicinity of the Falls, but 
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. ] 
CYPERACEAL. 
Cyperus diandrus, Torr............... 6.0. eee eee Galingale 
var. castaneus, Torr. 
Goat Island, on the east side, near the River. 
Cyperus esculentus, L. (Cyperus phymatodes, Muhl.)..Galingale 
Goat Island near the River. 
Cyperus strigosus, L............ cee ee eee eee. Galingale 
Wet places near Clifton, Ontario. 7 
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. 
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