Notes on AMERICAN FERNS—XVII 37 
long (seta included), 0.3-0.6 mm. broad; seta 0.3-0.6 
mm. long, stiff, scabrous, whitish- hyaline from a long 
lutescent taco: cilia 4-8 (11) on each side, 0.06—0.12 
mm. long, mostly oblique and ineurved. Spikes numer- 
ous, 1-2.5 em. long, slender, suberect; sporophylls 
coriaceous, deeply concave, broadly ovate, long-acumi- 
nate, mostly 2.2—2.8 mm. long (seta included), 1-1.3 mm. 
road: seta 0.3-0.55 mm. long, subentire, pungent, 
whitish- hyaline from a long lutescent base; cilia usually 
8-15 on each side, stout, 0.04—0.06 mm. long, t the upper 
ones dentiform; megaspores subglobose, yellow, about 
0.4 mm. thick, foveolate-reticulate: microspores orange, 
about 0. 047 mm. thic 
Type in the U.S. National Herbarium, no. 1,028,641, 
collected in the vicinity of Cracker Lake, Glacier 
pabese ices Park, Montana, altitude 1,740 to 1,920 meters, 
n moss-covered rocks, July 15 1919, by Paul C. Stand 
ley (no. aig Other aia late to this species 
is as sats 
Mon : Numerous i do. in Glacier National 
Park, wer 1,350 t o 2,600 meters elevation, on expos sed 
rocks, rocky Beaikde and ae slopes, and in dry or moist 
meadows, Standley 15318a, 15598, 16216, 16255, 16288, 
16378, 17055, 17164a, 17979, 18050, 18185; Ulke; 
WASHIN GTON: Mica Peak, Spokane County, Suks- 
dorf 8834. Mount Olympus, Flett 3092. 
OrEGon: Sumpter Valley ber Blue Moun- 
tains, rd 280 meters, Ferris & Duthi 
Wyromine: Upper Falls of the Sse cali aa Mearns 
4274. Mouth of Buffalo River, Merrill & Wilcox 1218. 
re chae Ten Sleep Creek, Big Horn County, Goodding 
Vee RITISH set eset Carbonate, alt. 810 meters, 
Heacock 235. Mount Copperstain, alt. 2,400 meters, 
Shaw 398. Above devceike, alt. 1,290 meters, Shaw 
. Goldstream, alt. 660 meters, Shaw 1060. 
Of the British Columbia and Wyoming material above 
cited duplicates of Goodding 483, Merrill & Wilcox 1218, 
Shaw 902, and Shaw 1060 were determined as S. densa 
Rydb. by Hieronymus, while Shaw 398 and Heacock 
235 were called by him S. columbiana A. A. Eaton, this 
