200 Rhodora [SEPTEMBER 
be seen in a single frond, the lower pinnae showing the immature form, 
and the upper ones, the mature. As the immature type of foliage 
appears to be sub-permanent in some cases, it seems to be worthy of a 
formal name. 
An extreme sun-form of the var. sitchense is the forma strictum,' 
which has narrowly lanceolate pinnules with revolute margins. It 
closely resembles the European var. convexum Newman, but may be 
distinguished from that variety by the lower pinnae, which in the 
European form are modified like the upper ones, whereas in the form 
now under consideration they are but slightly contracted, and resemble 
the basal pinnae of the typical var. sztchense. 
Athyrium Filix-femina var. sitchense occurs from the Aleutian Islands 
to California,? chiefly near the coast, also at low altitudes in the Selkirk 
Mountains of British Columbia, and in northern Idaho. 
American specimens of typical Athyrium Filix-femina in the Gray 
Herbarium: 
Ipamo: near Lakeview, Kootenai Co., August 1-10, 1892, A. A. 
Heller; in damp forest at Mullan, Coeur d’Alene Mts., altitude 3000 
ft., August 7, 1895, J. B. Leiberg no. 1493. 
OrEGON: Calapooga, Douglass Co., 800 ft. altitude, July 26, 1899, 
M. A. Barber, no. 125. 
WASHINGTON: Stevens Pass, Cascade Mts. August 17, 1893, 
Sandberg and Leiberg, no. 771; deep canyon near springs, Blue Mts., 
Columbia Co., August 7, 1897, R. M. Horner no. B. 598; Tacoma, 
Sept. 17, 1898, J. B. Flett; Clark Springs, Spokane, June 26, 1902, 
F. O. Kreager, no. 34; without locality, G. R. Vasey, no. 45. 
British CoLUMBIA: Selkirk region: Upper Spillimacheen, altitude 
6500 ft., August 3, 1904, C. H. Shaw no. 438; Spillimacheen valley, 
altitude 6000 ft., July 30, 1904, L. R. Heacock, in Shaw’s Selkirk Flora, 
no. 421; near mouth of Downie Creek, altitude 1900 ft., August 9, 
1905, C. H. Shaw no. 1127; Rogers Pass, altitude 4400 ft., August 9, 
1904, E. R. Heacock, in Shaw’s Selkirk Flora, no. 444; Goldstream, 
altitude 2200 ft., August 3, 1905, C. H. Shaw no. 1069. 
Coast region: New Westminster, June 1899, A. J. Hill; on rocks 
in shady places, Pt. Renfrew, Vancouver Island, June-July 1901, 
Rosendahl and Brand, no. 106. 
Specimens of Athyrium Filix-femina var. sitchense in the Gray 
Herbarium: 
_ Ipamo: along creeks near Rathdrum, Kootenay Co., July 25, 1892, 
McDougal and Heller, no, 723. 
1 ATraHyRIUM FILIX-FEMINA (L.) Roth var. strcHeNse Ruprecht ex Moore forma strictum 
(Gilbert), comb. nov., Athyrium cyclosorum strictum Gilbert, loc. cit., 32 (1901). 1 
2 I have seen a single specimen of this variety from California. It is in the collection of Mr. 
R. A. Ware of Boston, and was collected by R. J. Smith near Sur River, Monterey Co. It was 
distributed as Dryopteris spinulosa dilatata. 
