74 University of California Puhlications in Botany [Vxdl. 9 



County, crevices of dry ledges at 5,400 feet, R. A. Ware 525 ; Glen 

 Alpine, Setchell and Dobie, July, 1901 ; trail from Snow Creek to 

 Lake Tenaya, Yosemite, 8,000 feet. Smiley 675 ; Mineral King, south 

 slope at 2,750 m., Coville and Funston 1418. 



2. Pellaea Breweri D. C. Eaton, in Gray, Proc. Am. Acad., vol. 6, 



p. 555. 1866. 



Type locality. — "Rupestris inter montes Sierra Nevada Calif orniae 

 altitudine 7,800-9,000 ped. super mare." Brewer. 



Range. — Sierra Nevada east to Colorado and north to Oregon. 



Zone. — Hudsonian. 



Specimens examined. — Summit of the Sierra Nevada, Brandegee ; 

 base of Castle Peak, 9,500 feet, Pringle, September 27, 1882; east 

 slope of the Sierra five miles west of Truckee, 8,300 feet, Sonne 320 ; 

 trail to Angora Lake over moraine south of Fallen Leaf Lake, 7,300 

 feet. Smiley 6 ; Yosemite, Lemmon, August, 1872 ; Amador Pass, 

 among rocks at 9,000 feet. Brewer 2102 ; Sonora Pass, 7,000 feet, 

 Brewer 1919; Mono Pass, 9-10,000 feet, Bolander 6243; side of Mt. 

 Dana, 12,000 feet, Lemmon, August, 1878. 



Miss Eastwood reports^^ this fern as very common at Bullfrog Lake 

 and East Lake in the high mountains of Tulare County. . 



3. Pellaea densa Hook., Sp. FiL, vol. 2, p. 150., pi. 125. 1852. 



OnycMum densum Brack., m Wilkes' Exped., vol. 16, p. 120. 1854. 



Type locality. — "Oregon, on the banks of Rogue's Rover." 



Range. — British Columbia east to Montana and south to Kings 

 River in the Sierra and in the Rockies to Wyoming; also in eastern 

 Canada (Ontario and Gaspe). 



Zone. — Upper Sonoran to Canadian, 



Specimens examined. — Above Donner Lake toward Donner Pass, 

 Heller 7168 ; Tahoe, G. B. Grant in 1906 ; among rocks near Fallen 

 Leaf Lake, Miss Lathrop, July 12, 1909 ; Pyramid Peak, W. S. Atkin- 

 son in 1900 ; Silver Lake, 8,000 feet, Hansen 648 ; cliffs of granite 

 ledges above Donner Lake, Sonne 321 ; Yosemite, Torrey 590 ; near 

 Mineral King, Coville and Funston 1454. 



Pellaea hrachyptera (Moore) Baker, reported by Parish^^ to grow 

 "at high altitudes in the Sierra Nevada," is not known to me as 

 occurring above the Transition life-zone and is common only on dry 

 rocks in the Upper Sonoran. 



