cauline leaves few, oblanceolate, 5-15 mm. long: flowers 8-15 mm. long, 5 (4) 

 -merous, single and terminal on long naked peduncles, or few to many from the 

 lower leaves on elongate pedicels as much as 10 cm. long; calyx half the length of 

 the corolla or longer; calyx lobes nearly distinct, slightly gibbous-based, the outer 

 2 broader and shorter than the inner, usually more rugose and with membranous 

 margins; corolla white to bluish-purple, tubular, not plicate in the sinuses; corolla 

 lobes about one third the length of the tube, oblong-lanceolate, obtuse to acute, 

 each fringed within by 2 basal erect lacerate scales about one third as long; stamens 

 shorter than and freed about midlength of the corolla tube, the rather broad fila- 

 ments not wing-margined below the point of insertion; anthers sagittate-cordate; 

 ovary sessile; style very short, the stigmatic lobes oblong; capsule slightly exceeding 

 the corolla; seeds yellow, ovoid, nearly smooth. 



In wet meadows, seepage about lakes and rocky places at timberline, in N. M. 

 (Santa Fe and Taos cos.) and Ariz. (Coconino Co.), July-Sept.; circumpolar; 

 Greenl. to Alas., s. to N. M.. Ariz, and Calif.; Euras. 



5. Gentiana Fremontii Torr. Moss gentian. Fig. 628. 



Annual or biennial; stems simple or branched at or near base, 3-10 cm. tall; 

 leaves all broadly scarious-margined, mucronate; basal leaves orbicular to obovate, 

 5-6 mm. long; cauline leaves erect, oblong to linear, 4-6 mm. long; flowers ter- 

 minal, solitary; calyx narrowly funnelform, about 7 mm. long, the acute lobes 

 scarious-margined; corolla tubular, greenish-white, 5-7 mm. long, the tube shorter 

 than the calyx, the lobes with minutely toothed plaits in the sinuses; capsule at 

 maturity about 1 cm. long, exserted on an elongate stipe (to 2 cm. long), 2-valved, 

 dehiscent at the summit with the valves spreading to appear trumpet-shaped or so 

 as to suggest a large bilobed stigma; seeds 1 mm. long, ellipsoid, apiculate. Chon- 

 drophylla Fremontii (Torr.) A. Nels. 



Boggy meadows and seepage about springs and along streams, in N.M. (Taos 

 and San Miguel cos.) and Ariz. (Apache Co.), May-Aug.; Alta. to N.M., Ariz, 

 and Calif. 



6. Gentiana algida Pall. 



Cespitose perennial with 1 to several stems 5-20 cm. tall; basal leaves linear- 

 oblanceolate, 4-12 cm. long; cauline leaves in 3 to 5 pairs, linear-oblong to oblong- 

 lanceolate, 3-5 cm. long, mostly about 5(10) mm. broad, their bases connate for 

 5-8 mm., the subtending leaves of the usually 5-merous closely crowded subsessile 

 flowers often considerably broader, sometimes ovate-lanceolate; calyx narrowly 

 funnelform, mostly about 2 cm. long, usually purplish-blotched, the tube truncate 

 between the lobes; calyx lobes subequal, linear to lanceolate, from about half as 

 long as to subequal to the tube and somewhat carinate and more or less trans- 

 rugose; corolla usually about twice the length of the calyx, 3.5-5 cm. long, white 

 or pale-yellowish, purple-blotched and purplish-streaked from the back of the lobes 

 nearly to the calyx, strongly plicate between the acuminate short lobes; filaments 

 freed slightly below midlength of the corolla, the adnate portion broadly wing- 

 margined, free filaments about twice the length of the 3-4 mm. anthers; ovary 

 long-stipitate; style deeply 2-cleft, the stigmatic portion elliptic-oblong. G. Roman- 

 zovii Ledeb. ex Bunge, Dasystephana Romanzovii (Ledeb. ex Bunge) Rydb. 



Alpine bogs and wet meadows, and on seepage banks along streams and about 

 lakes, in N. M. (Santa Fe, San Miguel and Taos cos.), July-Sept.; N.M. to Alas, 

 and e. Sib. 



7. Gentiana Bigelovii Gray. 



Perennial, glandular-ciliolate throughout (especially on the nerves, calyx and 

 leaf margins), to 3 dm. tall, the slender erect stem leafy; leaves thickish, oblong to 

 oblong-lanceolate, obtuse, to 35 mm. long and 1 cm. wide; flowers 5-merous, short- 



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