30 Rhodora [FEBRUARY 
warmly extended for the loan of rare local floras, invaluable coopera- 
tion in the field, and an enthusiasm which no circumstances or condi- 
tions could dampen. 
The more interesting plant-associations are discussed in the follow- 
ing paragraphs, lack of time and study preventing a closer analysis. 
These association-types are so well known that it has seemed unneces- 
sary to name the plants characteristic of each. Only the rarer ones 
are mentioned. At the end of the paper, detailed records are given 
for the rarer species, Where the distribution of these throughout the 
state is recorded. 
(1). Duck Laxe. This is the only body of water of any size in the 
region. Dianthera americana and Pontederia cordata were growing 
on its banks in great abundance. 
(2). Dry WOODED HILLSIDES. Characterized by several Desmo- 
diums, Lycopodium tristachyum and Habenaria H ookeri. We were much 
surprised to find Serapias Helleborine at two stations. The plants 
were small and scraggly. 
(3). SWAMPS, AND ADJACENT SPRINGY PLACES. The only note- 
worthy plant in the swamps themselves was Potentilla palustris, and 
it was very scarce. But the borders yielded a great deal more. 
Samolus floribundus was common, H abenaria flava and H. lacera were 
frequent. Spiranthes lucida and Muhlenbergia racemosa were occa- 
sional. Juncus canadensis var. subcaudatus and Gerardia paupercula, 
the distribution of which in the State is little understood, were found 
growing together in one station. Carex Grayii was found in just one 
locality. The rare Juncus Torreyi was found in one place only, but 
was very abundant, growing luxuriantly, and covering almost an acre 
of ground. 
(4). Swampy woops. ‘The flora in these woods was rather limited. 
The lowest ground which was under water almost all summer, sup- 
ported a luxuriant growth of Calla palustris and Saururus cernuus. 
On hummocks, just above water, M itella nuda was frequent, while 
Liparis Loeselii and Habenaria fimbriata were occasional. Milium 
effusum and the rare Glyceria melicaria were occasional in open places. 
(5). Borrycmium woops. These peculiar woods must be described 
separately. Lying a short distance northeast of Spring Lake, they are 
about a mile long and a quarter mile wide. The soil was deep black 
muck almost devoid of undergrowth. The trees, of which Betula lutea 
was the most noteworthy, grew so thick that the sun scarcely pene- 
