48 AMERICAN FERN JOURNAL 
17a. EQUISETUM SYLVATICUM Var. CAPILLARE (Hofim.) 
Milde. Mostly in deep spruce-balsam woods on moist, 
but not too boggy, soil, but also on various other habi- 
tats, such as burned over glacial till or granite, or even 
muskeg. Rapids on Kenogami River, seven miles 
below Longuelac; Jellicoe; Lake Helen, north of Nipigon; 
Orient Bay and Ombabika Post, Lake Nipigon; Por- 
phyry Island, Lake Superior; Mt. McKay and Crystal 
Lake, south of Fort William; Hunt; Sioux Lookout. 
18. Equiserum paLustRE L. This widely distrib- 
uted species, extending from Newfoundland to Alaska 
and south to New York, Illinois, and Arizona, is dis- 
tinctly rare in the district explored. Macoun reports it 
from the east side of Lake Nipigon, our collections not 
including it. 
19. Equisrrum Lirorate Kuehl. On wet sandy 
shores from New Brunswick to Pennsylvania, Ontario, 
Minnesota and west to British Columbia. Reported by 
Macoun at Little Flat Rock Portage, south of Lake 
Nipigon. Our collections include it from Longuelac; 
Fort William; and North Ombabika Peninsula, north 
end of Lake Nipigon. | 
20. Equisetum ruuviatme L. (EB. limosum L.) 
This widely distributed species occurs in shallow waters, 
Swamps, and bogs; in open shallow water with a sandy 
bottom often forming large areas of dense and prac- 
tically pure associations. Our collections include it 
from Longuelac; Fort William; Hunt; Nipigon; Lake 
Jessie, twenty miles north of Nipigon; Orient Bay, 
south end of Lake Nipigon; and (in boggy spruce-sphag- 
num woods) at Ombabika, north end of Lake Nipigon. 
21. Equtserum Larvicarum A. Braun. This species, 
occurring from New Jersey to Ontario, North Carolina, 
Mexico, and British Columbia, is reported but once 1? 
Western Ontario, based on our collection along the boggy 
margin of the Nipigon River, below Nipigon, June 30, 
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