1922] Fernald,—Polypodium virginianum and P. vulgare 139 
specimens, all from ARIZONA, seem quite like European material: 
Maple Canyon Falls, Huachuca Mts., 1882, Lemmon; dry shaded 
crevices, north side of cliffs, Miller Canyon, Huachuca Mts., 1909, 
Goodding, no. 123 (distributed as P. hesperium); without statement of 
locality, 1903, J. H. Ferriss; moist rocks at 8000 ft., Rincon Mts., 
1909, Blumer, no. 3439. 
Var. OCCIDENTALE Hook. Fl. Bor.-Am. ii. 258 (1840).—Fronds 
elongate, broad-lanceolate, usually of thin texture, 1—5.5 dm. long, 
0.6-2 dm. broad, with 10-36 pairs of narrowly lanceolate, attenuate 
or acute finely serrate or serrate-dentate pinnae.—P. falcatum Kel- 
logg, Proc. Cal. Acad. i. 20 (1854). P. Glycyrrhiza D. C. Eaton, 
Am. Journ. Sci. ser. 2, xxii. 138 (1856). Var. falcatum (Kellogg) 
Christ, Beitr. Krypt. Schweiz. i. Heft. 2: 51 (1900). P. occidentale 
(Hook.) Maxon, Fern Bull. xii. 102 (1904).—Southern Alaska to 
northern California. ALASKA: dry rocky beach, Tongas Village, 
August 3, 1915, Walker, no. 888 in part (mixed with var. commune). 
BRITISH COLUMBIA: Skidegate, Queen Charlotte Islands, June 13, 
1910, Spreadborough, no. 94,847; New Westminister, 1899, A. J. Hill; 
Brackendale, June 15, 1916, J. M. Macoun, no. 93,246; Goldstream, 
Vancouver L, May 18, 1887, J. Macoun; on tree-trunks, mostly 
alder, District of Renfrew, 1901, Rosendahl & Brand, no. 98. Wasn- 
INGTON: mossy rocks and logs, August 20, 1888, F. Binns; Friday 
Harbor, San Juan Islands, 1917, Zeller, no. 794; old rotten logs in 
mossy woods, Tacoma, November 13, 1898, Flett. OREGON: Sauvies 
Island, J. Howell; on tree-trunks, Coos Bay, Lemmon; moss-covered 
trees, Coos River, October 29, 1881, Pringle; rocky woods, Salem, 
May 9, 1917, J. C. Nelson. Catirornia: Charlotta, Humboldt Co., 
June, 1915, E. P. Hawver; Feather River, Butte Co., March 29, 1919, 
Heller, no. 13,089. 
The extreme plant (var. falcatum) with very long-attenuate pinnae 
seems to be practically if not quite the European var. transsilvanicum 
Schur, Enum. Pl. Transsilv. 830 (1866), which was described: “ Ela- 
tum 12-15 poll. Fronde ambitu lanceolata, utrinque viridi; laciniis 
lineari-oblongis, 3 poll. long. 3-4 lin. latis, a media sensim acuminatis, 
acutis, manifeste serratis," with the discriminating comment by 
Schur: “An P. vulgare var. occidentale Hook.” Itisalso very close 
to the European var. attenuatum Milde, Fil. Eur. Atl. 18 (1867) and 
to var. Acutum-Stansfieldii Lowe, Our Native Ferns, i. 28, t. 9 (1867). 
Var. intermedium (Hook. & Arn.), n. comb.—-Fronds ovate to 
ovate-oblong, herbaceous to membranaceous, 1-3.5 dm. long, 0.6-1.2 
dm. broad, with 6-23 pairs of oblong or oblong-linear coarsely serrate, 
crenate or subentire acute to obtuse pinnae 0.6-1.8 cm. broad.—P. 
intermedium Hook. & Arn. Bot. Beech. Voy. 405 (1841). ,P. californi- 
