JESmrn RID Pe eM tS ae ee ae 
Bie 
PTERIDOPHYTES OF NORTHWESTERN ONTARIO—II 85 
this species is not as common in the Lake Superior 
region as is spinulosa. Our stations for it are: Crystal 
Lake, south of Fort William; Thunder Cape; Conmee, 
twenty miles north of Nipigon; Virgin Falls and Sand 
Point, south end of Lake Nipigon; Ombabika Post, 
north end of Lake Nipigon; and south end of Pelican 
Lake, Sioux Lookout. 
51. Dryopreris piuaTata (Hofim.) Gray. (Aspid- 
ium spinulosum var. dilatatum Hook.; D. spinulosa 
var. dilatata Underw.) This cireumboreal species ex- 
tends south to North Carolina, Tennessee, Idaho and 
California. Macoun says of it: ““Not very common 
in Ontario except about Lake Superior.” Our collec- 
tions of it are from: Heron Bay; Jackfish; Nipigon; 
Porphyry Island; Tee Bay, Thunder Cape; and Fort 
William. We did not find it at any of our localities 
away from the immediate shores of Lake Superior, 
and it is likely that this shore constitutes its northern 
boundary. 
5la. Dryopreris pILATATA forma ANADENIA (Robin- 
son) Hopkins. (D. spinulosa var. americana Fernald; 
Aspidium spinulosum var. dilatatum forma anadenium 
Robinson.) Differing from dilatata in having smooth 
indusia. Found by us at two stations: Moist coniferous 
woods, Porphyry Island; and along trail in wet woods 
hear Tee Bay, Thunder Cape. 
52. Finrx BuLBIFERA (L.) Underw. (Cystopleris bul- 
bifera Bernh.) On wet rocks and in ravines this species 
extends south from Newfoundland and Manitoba to 
Georgia and Arkansas. It is reported but twice from 
the Lake Superior region, based on our collection of 
Aug. 15, 1912, on moss-covered crumbling rock in 
-arbor-vitae swamp, Silver Islet Harbor, Thunder Cape; 
and on face of slate cliff, Oliver Creek, oe 
Southeast of Stanley. Macoun says of this fern: hats 
abundant in Ontario as far west as the Bruce Peninsula, 
