cauline leaves in 2 to 4 pairs, narrowly lanceolate to oblong or oblanceolate, 1.5-5 

 cm. long; fiowers 4- or rarely 3-merous, terminal on long naked peduncles and 

 usually also axillary on elongate peduncles with a pair of scarcely reduced folia- 

 ceous bracts at or below midlength; calyx 15-25 mm. long; calyx lobes acuminate, 

 subequal, alternately narrower and broader at the base, about equaling the tube; 

 corolla 3.5-6 cm. long, deep-blue to purplish, glandular at the base between the 

 bases of the filaments: corolla lobes subequal to the tube, oblong-obovate, erose- 

 lacerate at the rounded apex, more deeply lacerate on the sides, the sinuses neither 

 plaited nor appendaged; stamens slightly shorter than and inserted about midlength 

 of the corolla tube, the adnate portion broadly wing-margined, the free portion 

 thin and flat; anthers oblong. 3-4 mm. long; ovary stipitate; style relatively slender, 

 4-6 mm. long; stigma lobed, broad and flattened, pectinately fringe-margined; 

 seeds prismatic, terete, about 0.5 mm. long, dark-brown, finely alveolate. G. ther- 

 malis O. Ktze.. G. elegans A. Nels.. G. grandis (Gray) Holm, G. superba Greene, 

 Anthopogon elegans (A. Nels.) Rydb. 



In marshes, wet meadows, bogs, seepage banks along streams and coniferous 

 forest slopes, in N.M. (Colfax, Mora, Santa Fe, Taos and Sandoval cos.) and 

 Ariz. (Cochise and Santa Cruz cos.), July-Nov.; circumboreal, in N.A. from Nfld. 

 to Alas., s. to N.Y., Ind., S.D., N.M., Ariz., Calif, and Mex. 



3. Gentiana Amarella L. 



Annual or biennial 5-40 cm. tall, entirely glabrous or sometimes with scaberu- 

 lous-ciliolate leaves and calyx lobes; stems simple to freely branched, lightly 

 angled; basal leaves usually several, mostly oblanceolate, 5-40 mm. long; cauline 

 leaves mostly in 5 to 8 pairs, from ovate-lanceolate and clasping-based to lanceo- 

 late, oblong or oblong-oblanceolate, as much as 6 cm. long and 3 cm. broad, not con- 

 nate at the base; flowers immediately subtended by bractlets or with pedicels 3-20 

 mm. long, 4- or 5-merous (even on the same plant), varying greatly in size according 

 to their position and the time of blossoming but mostly 1-2 cm. long, sometimes 

 few or even solitary but usually numerous, the plants often floriferous from near 

 the base, the axillary cymes sometimes very elongate; calyx one third to one half 

 the length of the corolla, lobed two thirds to four fifths of its length, often more 

 deeply cleft on one side, the unequal lobes linear to lanceolate; corolla salverform 

 but usually closed and apparently tubular, violet, dark purplish-blue, pale bluish- 

 purple, lavender or clear blue to pale yellowish and lightly bluish-tinged; corolla 

 lobes about one half the length of the tube, oblong to lanceolate, rounded to obtuse, 

 appendaged at the base with slender fimbriae one half to three fourths as long, 

 sinuses not plaited; stamens well-included in and attached to the lower third of the 

 corolla tube, the adnate portion not wing-margined; ovary sessile; style essentially 

 lacking; stigmatic lobes oblong, rounded; capsule slightly exceeding the persistent 

 corolla; seeds ovoid to spherical, yellow, nearly smooth. G. strictiflora (Rydb.) A. 

 Nels., Amarella strictiflora (Rydb.) Greene. 



In wet meadows, marshes, seepage along streams, old lake beds and open conif- 

 erous forests, in N.M. (Catron, Colfax, Grant, Otero, Rio Arriba, Sandoval, Santa 

 Fe, San Juan and Taos cos.) and Ariz. (Apache, Coconino, Graham, Yavapai and 

 Yuma COS.), June-Sept.; over much of N.A. from Alas, to Mex.; Euras. 



Included here is an assortment of plants that vary from those that have numer- 

 ous, crowded, whitish or yellowish mostly short-pedicelled flowers to those that 

 have few, lax, blue to purplish or lavender distinctly pedicelled flowers. All types 

 of intergradation can be found between these two extremes. 



4. Gentiana tenella Rottb. 



Glabrous annual 4-15 cm. tall; stems simple to freely branched near the base, 

 very slender, 4-angled; basal leaves usually several, oblanceolate, 3-10 mm. long; 



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