90 



GENTIANACEAE 



Wyo., Fremont. 

 (1812), type loe. 



Eefs.^GENTiANA TENELLA Rottb., Act. Hafn. 10:436, t. 2, fig. 6 (1776), type European. G. 

 monantha Nels., Bull. Torr. Club 31:244 (1904), type loc. Mirror Lake, Colo., FredericTi Cle- 

 ments 456. 



5. G. fremontii Torr. Lone Gentian. (Fig. 334.) Stems erect, simple or 

 several from the base, 1^2 to 3 inches high, leafy throughout and bearing a single 

 terminal flower; herbage yellowish-green; leaf- 

 blades white-margined, 2 to 3 lines long, the 

 basal round-ovate, the cauline oblong, connate 

 at base ; calyx-lobes short, % length of the tube ; 

 coroUa tubular, dull white, 4 to 5 lines long, its 

 tube shorter than the calyx; sinus-appendages 

 toothed; capsule exserted on a long stipe at ma- 

 turity, dehiscent to the middle and becoming 

 trumpet-shaped, 2 lines wide. 



Boggy meadows, 7800 to 8700 feet: San 

 Bernardino Mts. East to the Rocky Mts. Asia. 

 Aug. 



Loc. — South Pork Santa Ana River, Peirson 3136. 

 Eefs. — Gentiana fremontii Torr.; Frem., Rep. 

 First Exped. 94 (1843), type loc. Wind River Mts., 

 G. humilis Stev., Act. Mosq. 3:258 

 Siberia; Jepson, Man. 764 (1925); 



not G. humilis 



Salisb. (1796). 



G.viridula'PaT- 



ish, Bot. Gaz. 



.38:461(1904), 



type loc. South 



Pork Santa 



Ana River, San 



Bernardino 



Mts., C. M. 



Wilder. 



6. G. prostrata Haenke var. americana 



Engelm. Pigmy Gentian. (Fig. 335.) Plants 

 3/2 to 2 inches high, often branching at base and 

 the lateral stems decumbent; leaf -blades ovate 

 to oblong, white-margined, i/o to 1 line long, the 

 basal orbicular; flowers solitary and terminal, 

 4 to 5 lines long; calyx -teeth short, about % 

 length of the tube; corolla blue, its lobes ovate, 

 acute ; sinus-appendages ovate, acute, entire or 

 notched, Vs to V^ as long as the corolla-lobes; 

 capsule enclosed in the corolla, linear-oblong. 



Meadows, 11,700 to 12,000 feet : White Mts. 

 Rocky Mts. from Colorado to Alberta and north 

 to Alaska. Aug. 



Loc. — McAfee Mdw., Duran. 



Refs. — Gentiana prcstrata Haenke; Jacq., CoU. 

 Bot. 2:66, t. 17 (1788). Var. amekicana Engelm., 

 Trans. St. Louis Acad. 2:217, pi. 9, figs. 10-15 (1863), 

 type loc. Mt. Flora, Snovfy Range, Colo., Parry 306. 

 Chondrophylla americana Nels., Bull. Torr. Club 31: 

 245 (1904). 



7. G. newberryi Gray. Alpine Gentian. Alpine dwarf, the one-flowered 

 stems % to 2 (or 4) inches long; leaf-blades mostly round-obovoid to oblanceolate, 

 narrowed to a short petiole-like base, I/2 to 1^2 inches long; calyx-tube turbinate, 

 its lobes linear or lanceolate, equaling or longer than the tube; corolla commonly 



Pig. 334. Gentiana FREMONTII Torr. 

 (I, habit, X 1 ; 6, long. sect, of fl., 

 X 2; c, capsule, X 1%. 



a 



Fig. 335. Gentiana prostrata 

 Haenke var. Americana Engelm. a, 

 habit, X 1/2 ; b, long. sect, of fl., X 2 ; 

 c, calyx spread open, X 1% ; d, stamen, 

 with portion of eoroUa-tube, X 4; e, 

 capsule, X 2. 



