8&4 AMERICAN FERN JOURNAL 
and Lake Nipigon; while our specimens are from: Heron 
Bay; Jackfish; Nipigon; Little Fluor Island; Paps 
Harbor, Black Bay Peninsula; Sleeping Giant Mt., 
Thunder Cape; Mt. McKay, Fort William; Virgin 
Falls; Orient Bay, and North Ombabika Peninsula, 
Lake Nipigon; slate cliff near Stanley; Sioux Lookout 
Knob, Graham. 
47. Dryopreris cristata (L.) Gray. (Aspidiwm 
cristatum Sw.) Although along its northern limit reach- 
ing Newfoundland and Saskatchewan, this species is 
not common in northwestern Ontario. Our stations 
for it are as follows: Orient Bay, Lake Nipigon, 1 in 
marshy Myrica bog and along monntain rivulet; 
alder thicket along stream south of Oscar; and on oe 
mocks with bog birch at south end of Pelican Lake, 
Sioux Lookout. 
48. Dryopreris rigiIpA (Hoffm.) Underw., var. AR- 
Guta (Kaulf.) Underw. Boggy woods near lighthouse, 
Porphyry Island, Lake Superior. This is very close 
to the European D. rigida (see Jennings, O. E., Am: 
Fern Journ. 4: 72. 1914, Hopkins comments on this 
specimen). 
49, DRYOPTERIS SPINULOSA (Muell.) Kuntze. (As- 
pidium spinulosum Sw.) Newfoundland and Labrador 
to Virginia, British Columbia and Idaho, and common 
in the Lake Superior region in mesophytic woods and 
thickets. Our stations for it are as follows: Heron 
Bay; Rossport; Nipigon; Little Fluor Island; Magnet 
Point; Edwards Island; Thunder Cape; Fort William; 
Jellicoe; Alexander Portage, Nipigon River; Stanley; 
Hunt; Sioux Lookout; and Pelican Falls, south side 
of Lac Seul. 
50. Dryopreris INTERMEDIA (Muhl.) Gray. (As- 
pidium spinulosum var. intermedium D. C. Eaton.) 
Common in moist woods from Newfoundland to Wis- 
consin and south to North Carolina and Tennessee, 
ee 
