40 AMERICAN FERN JOURNAL 
of that part of the lake, while, inland, the localities ex- 
tended to the north end of Lake Nipigon, about 110 
miles north of Lake Superior, and from Long Lake, east 
of Lake Nipigon, to Sioux Lookout, west, a distance of 
about 275 miles, altogether extending over a region of 
perhaps twice the size of New Jersey. 
The distribution of plants in this part of Canada is 
highly interesting and deserves to be better known. 
Like the neck of an hour-glass, it constitutes a very 
much narrowed connecting link between the wider 
eastern and western distribution areas of many northern 
species, or perhaps between species of close relation- 
ship. In the latter category may be mentioned the 
Salmon Berry (Rubus parviflorus), a western species 
reaching the northern shore of Lake Superior and closely 
related to the eastern Rubus odoratus, which reaches 
Michigan to the west. Similarly the western Devil’s 
Club (Fatsia horrida) meets in this region the eastern 
Bristly Sarsaparilla (Aralia hispida). The same per 
ciple seems to apply with regard to some of the pteri- 
dophytes, as noted farther on in this article in the list 
of species. 
In the following list of our collections the writer has 
attempted to note also the localities in which other col- 
lectors have found the various species. The frequent 
references to Macoun refer to the Catalogue of Can- 
adian Plants by John Macoun (See literature cited.—). 
Our own records are all substantiated by one or more 
sheets of specimens in the Herbarium of the Carnegie 
Museum, and many of these are also represented by 
duplicates in the Herbarium of the American Ferm 
Society. Most of the specimens have been identified, 
or at least verified, by Prof. L. 8. Hopkins. to whom I 
express my grateful appreciation. The general range? _ 
mentioned for a number of the species listed have been 
based mainly on the last editions of Gray’s Manual and 
Britton & Brown’s Illustrated Flora. 
