74 University of California Publications in Botany [Vol. 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. 



Specimois exatnined. — 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 verj^ 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. 



Onychium densum Brack., in Wilkes' Expect, 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. 



