1923] Flora of the Boston District, —XLI 185 
Nyssa SYLVATICA Marsh. A swamp containing at least two 
dozen large trees occurs at the edge of the lake at the foot of Rattle- 
snake Mountain. A hollow in one of these trees was large enough 
to contain a family of raccoons. In the Hanover, N. H., list of plants, 
Nyssa sylvatica is quoted on Jesup's authority as growing at Squam 
Lake. This may well be the place which Jesup had in mind, for at 
no other place in this region have large trees been seen by the writer. 
Growing in this swamp are Woodwardia virginica and Sparganium 
minimum, the former a southern, and the latter a northern species. 
Just to the westward of this tupelo swamp on a sandy beach grows 
Hemicarpha micrantha, a small sedge characteristic of the coastal 
plain. Specimens in the Gray Herbarium show that this was collected 
at Squam Lake by C. E. Faxon as early as 1880. This is the northern- 
most station recorded in New Hampshire. Growing with it are 
Cyperus dentatus and Panicum Tuckermani Fernald. At the mouth 
of the brook which drains the valley between Rattlesnake Mountain 
and the Squam Range grow Subularia aquatica, Sagittaria graminea, 
and Potamogeton bupleuroides Fernald, the latter a species which 
is found most commonly in brackish coastal waters. In a bordering 
meadow grows Polygala sanguinea, a northern station for this plant. 
On the eastern slopes of the Squam Range Conopholis americana, 
Equisetum scirpoides, and Lycopodium sabinaefolium were collected. 
All of the foregoing plants were obtained within an area of a little 
more than one square mile. Specimens of most of these plants have 
been placed in the Herbarium of the New England Botanical Club. 
Union COLLEGE. 
REPORTS ON THE FLORA OF THE BOSTON 
DISTRICT,—XLI. 
LENTIBULARIACEAE. 
UTRICULARIA. 
U. biflora Lam. Charles River, Dedham (E. & C. E. Faxon, Aug. 
3, 1880); Charles River below Wellesley (K. M. Wiegand & M. 
Heatley, July 20, 1908). 
U. cornuta Michx. Wet sandy soil, often in shallow water; frequent. 
U. geminiscapa Benj. (U. clandestina Nutt. of Gray’s Manual, 
7th ed. See Rnopona xxiii. 142, 1921.) Ponds and stagnant water, 
rare; Tewksbury, Westwood, Stoughton, Holbrook. 
