114 
THE AMERICAN BOTANIST. 
left, we found the lake cress, {Nasturtium lacustre). Pota- 
mogetons were there in abundance. To me, however, P. hete- 
rophylhis, P. praelongus and P. ohtusifolius were new. A 
few plants of that most beautiful of our native water lillies, 
Nymphaea tuberosa were seen. The arrow-head was here in 
abundance in the shallows and we particularly noted Sagittaria 
Engehnanniana together with the green water arum, (Peltand- 
ra Virginica), which was sparingly present. 
Leaving the creek we climbed far up the foot of the pre- 
cipice and were rewarded by finding the bladder-nut, (^'/a- 
phylea trifolia). As we were about leaving the precipice on 
our return up the creek, we put the boat back to examine a 
curious lichen, near the base of the rock, which proved to be 
Umbilicaria velosa. We had earlier in the day found that 
semi-aquatic lichen, Endocarpon fluviatile. On our home- 
ward w^ay we passed through a lovely glen, locally known as 
Horse Heaven, and here we found the large twayblade, {Lep- 
torchis liliifolia), while a bit farther on we chanced to find the 
Huron orchis, {Limnorchis Huronensis) . 
The next day an excursion to some small lakes near the 
head of Lake George resulted in other interesting finds. 
Among them being Carey's persicaria {Polygonum Careyi) 
and Lysimachia producta; also the little humped bladderwort, 
{Utriciilaria gibba), found upon some apparently floating is- 
lands in a small pond. The great find of the day, however, 
proved to be the whorled bogonia, {Pogonia verticillata) . Not 
often is it given to a botanist to see this rare plant growing. 
Only one small patch of perhaps twenty individuals rewarded 
our search. Another orchid quite abundant in this swamp, 
was the checkered rattlesnake plantain, {Goody era tessel- 
latum). 
The ferns, too, came in for their share of attention and my 
notebook shows the addition of Goldies' fern, {Nephr odium 
Goldieamun) ; the narrow-leaved spleenwort, {Asplenium an- 
