1905] Cushman,—Desmid Flora of New Hampshire 111 
A CONTRIBUTION TO THE DESMID FLORA OF NEW 
HAMPSHIRE. 
JOSEPH A. CUSHMAN. 
(Plate 61.) 
ALTHOUGH New Hampshire contains the greater part of what may 
be called the mountain region of New England, with the highest 
elevations of land and great numbers of ponds and lakes, its Desmid 
flora has hardly been touched on. By the natural conditions of 
alpine summits and valley lakes a considerable number of species 
would naturally be expected. In the present paper it is believed that 
all previous records are included. These records are as follows: a 
few species collected by Lewis at Saco Lake and reported in Wood's 
Fresh Water Algae of the United States; a short list of about a 
dozen species from Hanover recorded by Edwards in the Geology of 
New Hampshire; a very few records in Wolle's Desmids of the 
United States; a few records from about Rochester by Hastings; a 
few records by L. N. Johnson; a number of records and descriptions 
of new species by W. & G. S. West, these being largely from the 
notes of L. N. Johnson. 
During the last three years the writer has obtained a considerable 
amount of New Hampshire material. This consists of the following : 
very rich collections from Pudding Pond, North Conway and from 
Intervale, consisting of Utricularia and an abundance of Desmids, 
collected by Dr. Glover M. Allen; collections from North Woodstock 
and Mt. Moosilauke (3000 and 4000 ft. altitude) collected by 
Warren A. Priest; several lots of material from about North Wood- 
stock, collected by George A. Fisher; material from Squam Lake, 
collected by Herman Gammons ; and lastly material from Noone's 
Station, obtained from dried Utricularia specimens in the Gray 
Herbarium collected by Dr. B. L. Robinson (no. 473). 
The material of L. N. Johnson, which was reported by slide num- 
bers and which is now in the Cryptogamic Herbarium of Harvard 
University, has been examined by the writer through the kindness of 
Drs. Farlow and Thaxter. Those which were located are marked 
with an exclamation point (!) as well as all the other records for 
which specimens were seen by the writer. 
