147 
mentions Bearberry as found in Greene County, and this oc- 
curence north of the Catskill Mountain House may be the basis 
of that report, as it can easily be reached on the trail from the 
hotel and would be noticed by anyone acquainted with it. 
The beds of Potentilla tridentata on these ledges are dense and 
flourishing. Their elevation is about the same as the colonies of 
the plant on Alander and Brace Mountains and Mount Everett, 
on the Taconic Plateau about 40 miles eastward of the Catskill 
location. 
Since it appears from Mr. William Gavin Taylor’s and my 
own report that Potentilla tridentata occurs on the exposed outer 
front of the Catskills, a search of ledges atop the cliffs north and 
south of Kaaterskill Clove, especially toward the Blackhead 
Range, where several high cliffs are visible, may disclose still 
other stands, which I hope to find. 
Damsel Flies captured by Drosera 
RayMonp H. TORREY 
I have seen during the past summer, several examples, and 
heard of another, of the capture by species of Drosera, of Damsel 
Flies, which seemed to me rather large and powerful insects to 
be taken by these insectivorous plants. At Little Cedar Pond, 
east of Greenwood Lake, in June, with the class in regional 
science of Teachers College, Columbia University, I saw a dozen 
blue damsel flies enmeshed on the leaves of Drosera rotundifolia. 
n some cases more than one plant, in a dense bed of them on 
the quaking bog that borders the pond, had seized a single in- 
sect; and the exudation from the hairs was increasing and the 
hairs were bending about the body of the insect, in the same 
manner as they inclose and digest smaller insects. The combina- 
tion of the bright red hairs with their shining digestive fluid and 
the bright blue insect was very striking. ; 
Mr. Max A. Elwert, a member of the Torrey Botanical Club, 
reported to me on Sept. 8, that he found a damsel fly caught on 
the leaves of Drosera longifolia, in a bog along the Davenport 
branch of Tom’s River, in Ocean County, New Jersey. The 
Capture of so large an insect, more than an inch long, by the 
Narrower-leaved D. longifolia seems quite a remarkable per- 
formance. 
