296 University of California Publications in Botany [Vol.9 



2. GENTIANA 



Perennials with calyx surrounded by an involucre of leaf -like bracts. 



Flowers solitary and terminal on the short (1-5 inch) stem; corolla lobes 



acute 1. G. Newberryi 



Flowers 1-several at the summit of the longer (4-18 inch) stem; corolla lobes 



rounded 2. G. calycosa 



Annuals of slender habit, with the calyx naked. 



Plant very leafy to the top and many flowered; flowers i/j inch long 



3. G. amarella 



Plants with but few leaves (2 or 3 pairs) ; flowers terminal, solitary, 1 inch 

 long. 

 Stems branching at base and leafy below, with the upper and longer part 

 scapose; corolla lobes entire or rarely erose-donticulate about the 



summit; seeds scabrid with minute scales 4. G. holopetala 



Stems alwaj's simple and leafy to the middle or above; corolla lobes dentate 

 at summit; seeds smooth 5. G. simplex 



1. Gentiana Newberryi Gray, Proc. Am. Acad., vol. 11, p. 84. 



1876. 



Type locality. — "Oregon and California, in the Sierra Nevada, 

 from Crater Pass (Newberry) to Mariposa County, Bola^ider." 



Range. — Mt. "Whitney region of the Sierra Nevada northward to 

 the mountains of Siskiyou County and southern Oregon. White 

 Mountains of Inyo County. 



Zone. — Canadian and Hudsonian. 



Specimens exaonined. — Plumas County, Mrs. Austin in 1876 ; 

 Webber Lake, Lemmon; Silver Lake, Amador County, 8,000 feet, 

 Hansen 707 ; Ralston Peak, Tahoe, 8,100 feet. Smiley 414 ; near Glacier 

 Point, Yosemite, Congdon, August 4, 1898; Yosemite trail between 

 Clark's and Westf all's meadows, Bolander 6360; Lyell Fork, Tuol- 

 umne River, 9,000 feet, E. B. Babcock, August, 1915; near Glacier 

 Point, Miss Jane White, September, 1902; Eagle Peak meadows, 

 Yosemite, 8,000 feet, Smiley 493 ; Dana Fork meadows, Yosemite, 

 10,100 feet. Smiley 860; Hockett's meadows, Tulare County, Dudley 

 1011 ; Crabtree meadows, Tulare County, 10,330 feet, H. M. and G. R. 

 Hall 8442; Kaweah meadows, Tulare County, 9-10,000 feet, Purpus 

 5198. 



2. Gentiana calycosa Griseb., in Hook., Fl. Bor. Am., vol. 2, p. 58, 



t. 146. 1838. 



G. calycosa var. stricta Griseb., I.e. 



G. Gormani Howell, Fl. N.W. Am., vol. 1, p. 446. 1901. 



Pneumonanthe calycosa Greene, Leaflets, vol. 1, p. 71. 1904. 



Type locality. — "At Mount Rainier, on the northwest coast." 

 Range. — British Columbia to California and Wyoming. Colorado ? 

 Zone. — Hudsonian and Arctic-alpine. 



