46 AMERICAN FERN JOURNAL 
is northern Maine to Delaware and south in the moun- 
tains to North Carolina. Also Lake Superior. The 
Watcomb station is thus a notable northwesterly ex- 
tension of range. 
12, SELAGINELLA RUPESTRIS (L.) Spring. On ex- 
posed rocks and clifis, mostly along shores. Reported 
from New England and Ontario to Georgia and the 
middle West. In the Lake Superior region Agassiz 
reported it for the north shore of the lake and Macoun 
for the east coast of Lake Nipigon. Our collections are 
from: Heron Bay; Rossport; Nipigon; Livingston Point, 
n. e. shore of Lake Nipigon; shores of Pelican Lake and 
pockets at top of Sioux Lookout Knob, Graham, these 
latter records being perhaps the most northwestern re- 
ported for the species. 
13. SELAGINELLA SELAGINOIDES (L.) Link. This cir- 
cumboreal species extends south in North America to 
New Hampshire, Michigan, and Colorado. Noted by 
Macoun as ‘‘Very common along the north shore of 
Lake Superior and shores of Lake Nepigon,’’ but col- 
lected during our five seasons in that region twice: 
Under alder fringe at edge of Maloney Harbor, Magnet 
Point, Lake Superior; and at mouth of cold springs in 
flat sandy-marly bog, margin of small lake at Jellicoe. 
14. Isonres Braun Dur. (I. echinospora var. 
Braunii (Dur.) Engelm.) On open sandy clay or gravel 
bottoms of fairly quiet but not stagnant water, at 2 
depth of three inches to two feet. East shore of Orient 
Bay, Lake Nipigon; near English River Falls and shore 
of Jarvis Lake, Hunt, Can. Gov. Ry. This is mainly a 
northern species, but ranging south to Pennsylvania In 
the east and to California in the west. Our specimens 
are, however, possibly of an undescribed species or var- 
lety. 
