90 AMERICAN FERN JOURNAL 
this region.” He states that P. mucronata is there 
confined strictly to the Upper Sonoran Zone and to 
that part of it which he has called the Lower Chaparral 
Zone, and that in these limits it is exceedingly abun- 
dant. He adds: “I noted P. compacta as belonging 
to the Canadian Zone; but to be more exact, it may be 
said to occur also in the upper part of the Upper Trans- 
ition. Its occurrence is frequent, but it is by no means 
so common and abundant as the other species. So far 
as my observation extends there is a geographical hiatus 
between the two species in which no Pellaea occurs. 
I have never seen any material that I could regard as 
intermediate.” Pellaea compacta was described orig- 
inally as a variety of P. Wrightiana, to which species 
and P. longimucronata it is more remotely related. 
PetLaEA Bripcest1 Hoox.—This species, which 
seems to have been known only from California, occurs 
also in Idaho. Specimens at hand were collected by 
Mr. E. Grandjean (no. 96) in the autumn of 1913 in 
the Boise National Forest, on rocky hillsides of the 
divide between the Salmon and Payette Rivers. In 
California this species ranges in the Sierra Nevada 
from Nevada County southward to Mineral King, 
Tulare County (Coville & Funston 1418), at altitudes 
of 1650 to at least 3300 meters. 
PeLLakA Breweri D. C. Eaton.—The distribution 
of P. Breweri has recently been stated by Butters* as 
“from the Sierra Nevada Mountains, through the 
basin ranges of Nevada and Utah, to the Blue Mountains 
of Oregon, central Idaho, and western Wyoming.” 
This range may be definitely extended to include Wash- 
ington, on the basis of a single collection in the National 
Herbarium (Yakima region, 1883, Tweedy 20). There 
are, in addition, published records for New Mexico 
and Montana, which the writer has been at some pains 
4 Amer. Fern Journ. 7: 86. 1917. 
