PELLAEA ATROPURPUREA AND P. GLABELLA 85 
New Mexico: Ft. Wingate 1883, W. Matthews. 
Wasuineton: Klickitat Co., August 11, 1892, W. N. 
Suksdorf no. 2083. 
British Cotumstra: dry face of cliff, Carbonate Draw 
(upper Columbia River above Golden) altitude 5900 ft. 
July 14, 1904, Z. R. Heacock in C. H. Shaw's Selkirk 
Flora no. 272 (type). 
It seems highly probable that all reports of Pellaea 
glabella and of P. atropurpurea from western Canada 
are based upon the variety just. discussed. Thus in 
the original description of P. glabella, the range is given, 
“Kimmswick prope St. Louis, Visconsin. Columbia 
anglica (Lyall). Rocky Mountains,’’* and Macoun, who 
oes not distinguish between P. glabella and P. atropur- 
pured, cites the following western stations for the latter 
species: “‘rare in crevices of limestone rocks on moun- 
tains near Kananaskis Station, Rocky Mountains, on 
the C. P. Ry., and on limestone cliffs, Clearwater River, 
north of Methy Portage, Lat. 57° N. W. Ter.; canyon 
near Buffalo Road Bridge and Cache Creek, B. C. (Ma- 
coun.) Hillsides on broken rocks, not common, Koo- 
tanie Disirict, B. C. (Anderson.) Canada to Bear 
Lake and the Rocky Mountains. (Richardson, Drum- 
mond.) Mountains between Nicola and Kamloops. 
Be: (Lawson.) Banff, Rocky Mountains Park. (J. 
Smith.) 
It is to be noted that the two western varieties of P.- 
glabella, like the typical eastern form of this species, 
appear to be strictly calciphile. Limestone is men- 
tioned as the habitat in all cases where any rock is 
Specified, and in other cases the region mentioned is 
Own to consist of limestones. The type specimen of 
the var. simplex comes from a region of calcareous foot- 
hills which .is known to have a strongly calciphile flora. 
* Kuhn, Max., Reliquiae Mettenianae, Linnaea 36: 87. 1869. 
*Macoun, John, Catalogue of Canadian Plants, part 5: 261. 1890. 
