82 AMERICAN FERN JOURNAL 
42a. ATHYRIUM ANGUSTUM var. glanduliferum var. 
nov. Closely allied to var. rubellum, from which it 
differs in that the pedicels of the sporangia are mostly 
furnished with a stalked colored gland, the indusia 
mostly have cilia of several cells in length, and the 
pinnules are rather more acute and tend to be spin- 
ulose-toothed. The type is from mixed woods on glacial 
terrace at Nipigon, O. E. and G. K. Jennings, Sept. 1, 
1912. Other specimens: mixed woods at head of west 
fork of Jackfish Bay, Lake Superior; from mixed woods 
at Pelican Falls, Lac Seul; mixed woods along trail on 
glacial till, Sioux Lookout. The two last-mentioned 
specimens have the pinnules rather remote, the one 
from Pelican Falls having a few forked pinnae and the 
pinnules somewhat oblique, acute, and almost spinu- 
lose-toothe 
42b. ATHYRIUM aNGUsTUM var. boreale var. nov. 
The fronds are dimorphic but differ from f. typicum 
and var. elatius in that the fertile pinnules, especially, 
are much more sharply and deeply toothed and are 
acute rather than obtuse. The writer can not dis- 
tinguish between varieties boréale and glanduliferum in 
some cases excepting that the one has dimorphic fronds 
and the other not. It appears quite likely that the 
dimorphic varieties owe this character simply to their — 
more exposed habitat. The type was collected along 
the sunny muskeg margin of Little Bear River, Oscar, 
C. G. R., O. E. and G. K. Jennings, Sept. 5, 1917. An- 
other fine specimen was collected on burned-over boulder 
till north of Lake Nipigon, near Ombabika Post. - 
mixed woods on boulder moraine, Watcomb, C. G.. 
spruce muskeg near Jellicoe, east of Lake Nipigon; 
and at several places in the sand hills about 17 miles 
west of Ft. William. It will be noticed that the variety 
boreale occurs in both physically xerophytic habitats 
(boulder-moraine, sand-hill, burn) and in boggy situa- 
tions. 
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