296 University of California Publications in Botany [Vol.9 



2. GENTIANA 



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



riowers 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 % 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-denticulate about the 



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



Stems always 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 (Newherry) to Mariposa County, Bolander." 



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 examined. — Plumas County, Mrs. Austin in 1876 ; 

 Webber Lake, Lenimon; 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., m 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. 



