210 Rhodora [SEPTEMBER 
NEWFOUNDLAND: grassy strand, Ingornachoix Bay, August 2, 
1910, Fernald and Wiegand no. 2354; damp talus of limestone sea- 
cliffs, Point Riche, Ingornachoix Bay, August 4, 1910, Fernald and 
Wiegand no. 2355; talus slopes of the marble region between Mt. 
Musgrave and Humber Mouth, July 18, 1910, Fernald and Wiegand 
no. 2353. 
QueEBEc: cold calcareous walls of the Grand Coupe, Percé, Gaspé 
Co., August 5, 1907, Fernald and Collins no. 795 (a very small and 
immature plant); alluvial woods, Nouvelle, Bonaventure Co., July 
19 and 20, 1908, Collins and Fernald; Grand Cascapedia River, 
Bonaventure Co., July 12-15, 1905, Williams, Collins and Fernald 
no. 1; meadows and swamps in the slaty region south of Bic, Rimouski 
Co., July 25, 1907, Fernald and Collins no. 794 (type); Rivière du 
Loup, July 24, 1908, A. A. Eaton no. 217; Little Metis, July 18, 1906, 
James Fowler; Georgeville, July 5, 1905, J. R. Churchill. 
Marne: rich upland meadows, Cutler, Washington Co., July 3, 
1902, Kennedy, Williams, Collins and Fernald; larch and arbor- 
vitae swamps, Houlton, Aroostook Co., July 13, 1916, Fernald and 
Long no. 12302. 
Micuican: Isle Royale, Lake Superior, July 3, 1909, W. S. Cooper 
no. 23 (a large but very immature specimen, which appears to be of 
this variety, but cannot be identified with entire certainty).! 
South of the region occupied by Botrychium virginianum var. lauren- 
tianum, there is a second variety somewhat intermediate between this 
fern and typical Botrychium virginianum. The sterile frond has the 
somewhat ovate pinnules and the spatulate ultimate segments of the 
var. laurentianum, though without the close imbrication of the seg- 
ments which is characteristic of that variety. The ultimate segments 
of the fertile frond are narrow (0.25-0.5 mm. wide) as in typical 
Botrychium virginianum, but are thin and flat and more translucent 
than in that plant. The sporangia resemble those of var. laurentianum 
except in their smaller size (0.5-0.8 mm. long when dried) and slightly 
wider dehiscence. This also is an undescribed variety, 
BoTrRYCHIUM VIRGINIANUM (L.) Sw. var. intermedium, var. nov., 
1 This list includes all the material of the Botrychium virginianum group from the region of 
the Gulf of St. Lawrence with three exceptions, viz.: 1. Typical Botrychium virginianum 
occurs on Prince Edward Island as indicated by the following specimens: swampy Larix and 
Thuja woods, Tiginish, August 6, 1912, Fernald, Long and St. John no. 6679; springy larch 
swamp, Bloomfield, August 7, 1912, Fernald, Long and St. John no. 6680; larch swamp, 
Dundee, August 26, 1912, Fernald, Long and St. John no. 6681. 2. The following variety 
occurs on Cape Breton Island, as noted on p. 211. 3. Three plants collected by Mr. Harold 
St. John in September 1915, at Betchouam, Seignoiry of Mingan, on the south shore of the 
Labrador peninsula (Geological survey of Canada, no. 90028) appear to belong to.an unde- 
scribed variety of Botrychium virginianum. They were, however, collected so late in the 
season, and in such an over-mature condition that it seems best to postpone a description of 
this form until better material can be obtained. As Mr. St. John hopes to visit the same 
region again, in the near future, I have hopes that additional material of this form may soon. 
be available. 
