92 AMERICAN FERN JOURNAL 
opposite the present town of Del Norte, in Rio Grande 
County, Colorado, 30 or 40 miles from the source of 
the river. In definitely excluding New Mexico and 
Colorado from the known range of P. Breweri, there- 
fore, Colorado is added to the range of P. glabella. 
Whether the collection was by Rothrock or by Loew 
is uncertain. 
A departure from the characteristic 2-lobed or ‘‘mit- 
ten-shaped”’ form of the pinnae is mentioned by Eaton 
in the case of the ‘“‘Loma” specimen (P. glabella var.) 
erroneously referred by him to P. Breweri, the larger 
pinnae having three or four distinct lobes. _Undoubted 
Pellaea Breweri, also, occasionally has a similar devel- 
opment, as shown by a small specimen from Cotton- 
wood Canyon, Utah, in the Eaton Herbarium, and by 
young fronds in the National Herbarium collected on 
the Death Valley Expedition, at the north base of 
Telescope Peak, Panamint Mountains, California, June 
23, 1891, by Coville and Funston (no. 2028). Some 
of the latter are even more subdivided, the proximal 
basal segment of the larger pinnae being free and itself 
bilobed. The plants seem otherwise not to differ from 
ordinary states of P. Breweri. 
The following collections, chiefly from the interior 
regions, are additional to those cited by Butters. All 
are in the National Herbarium: 
WyominG: Special locality wanting, Sept. 4, 1893, 
Rose 325. 
IpaHo: Mountains at head of Redfish Lake, alt. 
2550-3000 meters, Aug. 22, 1895, Evermann 438; Bo- 
nanza, Custer Co., alt. 2250 meters, July 25, 1916, 
Macbride & Payson 3433; Smoky Mountains, Blaine 
Co., alt. 2700 meters, Aug. 13, 1916, Macbride & Payson 
3758; Blackfoot Canyon, Caribou Forest, Bannock 
County, alt. 1900-2100 meters, Sept., 1913, Eggleston 
