38 Rhodora [Marcu 
Hypnum scorpioides L. Eurasia. Greenland, Labrador, New- 
foundland, Miquelon, Anticosti, Gaspé, New Hampshire, Vermont, 
Ontario, Peace River, Canadian Rockies, British Columbia, Yukon, 
Alaska. 
Camptothecium nitens (Schreb.) Schimp. Eurasia. Hudson Strait, 
Labrador, Anticosti, Gaspé, New Brunswick, Vermont, Rhode 
Island, Connecticut, New York, Pennsylvania, Ontario, Minnesota, 
Saskatchewan, Peace River, Canadian Rockies, British Columbia, 
Northwest Territory, Alaska. 
Hypnum trijarium Web. & Mohr. Eurasia. Greenland, Gaspé, 
Ontario, Ohio, British Columbia. No record of this species having 
been collected in New England has been found. 
Even a casual perusal of the distribution of the last four species, 
as here outlined, will show the striking similarity of general range. 
The collections of the writer in the Gaspé Peninsula during the past 
four years have demonstrated the fact that there they, especially the 
last three, are occasionally associated in the marly bogs and along 
marly pond margins. 'Phe strikingly similar general range of the 
four in North America at least suggests the possibility that they may 
be closely associated elsewhere than in Gaspé and Maine. ‘That the 
last named species has not been reported from as many stations as the 
other three may be due partly to the fact that it often grows more or 
less scattered or isolated through great colonies of much more con- 
spicuous mosses, for example, Hypnum scorpioides. 
PROVIDENCE, В. I. 
VIOLA CHINENSIS IN THE EASTERN UNITED STATES. 
Ezra BRAINERD, 
THE behavior of Viola chinensis in four or five localities in the 
Eastern States indicates the possibility of its becoming established as 
a more or less troublesome weed. The story of the introduction of the 
gypsy moth and of the English sparrow into the United States, and 
of the American water-weed, Elodea canadensis, into the canals and 
rivers of England, should make us watchful of foreign plants or animals, 
that are cultivated from scientific curiosity. 
