VOL. II.] 



GENTIAN FAMILY. 



615 



6. Gentiana quinquefolia L. Stiff Gentian. 



Gentiana quinquefolia L. Sp. PI. 230. 1753. 

 Gentiana quinqueflora Lam. Encycl. 2: 643. 1786. 



Annual; stem ridged, usually branched, 2 / -2 

 high, quadrangular. Basal leaves spatulate, obtuse, 

 those of the stem ovate, acute at the apex, clasping 

 and subcordate or rounded at the base, 3~7-nerved, 

 YZ'-I' long; flowers in clusters of 1-7 at the ends 

 of the branches, or also axillary; pedicels slender, 

 2 //_ 7 // long; calyx one-fourth to one-third the 

 length of the corolla, its lobes narrow, or sometimes 

 foliaceous, acute; corolla tubular-funnelform, blue, 

 its lobes triangular, very acute, entire, not crested at 

 the base; capsule stipitate; seeds globose, wingless. 



In dry or moist soil, Maine and Ontario to Michigan, 

 south to Florida and Missouri. Ascends to 6300 ft. in 

 North Carolina. Aug. -Oct. 



Gentiana quinquefolia occidentalis (A. Gray) A. S. Hitch- 

 cock, Trans. St. Louis Acad. 5: 508. 1891. 

 Gentiana quinqueflora var. occidentalis A. Gray, Man. 



359. 1848. 



Usually taller and paniculately branched; corolla 

 more broadly funnelform; calyx-lobes foliaceous, reach- 

 ing to the middle of the corolla. Ohio to Minnesota, 

 south to Tennessee and Louisiana. 



Ague-weed. (Fig. 2871.) 



7. Gentiana affinis Griseb. Oblong-leaved 



Gentian. (Fig. 2872.) 

 Gentiana affinis Griseb. in Hook. Fl. Bor. Am. 2: 56. 1834. 



Perennial; stems clustered from deep roots, min- 

 utely puberulent, simple, 6 / -i8 / high. Leaves linear- 

 oblong to lanceolate-oblong, obtuse or acutish, 

 rounded or narrowed at the base, firm, roughish-mar- 

 gined, indistinctly nerved, %'-i%' long, the floral 

 smaller; flowers few, numerous, or rarely single, 5- 

 parted, sessile and solitary or clustered in the axils 

 of the upper leaves, about i' high, not bracted under 

 the calyx; calyx-lobes linear or subulate, unequal, 

 the longer about equalling the tube, the smaller some- 

 times minute; corolla narrowly funnelform, blue, its 

 lobes ovate, acute or mucronate, entire, spreading, 

 with laciniate appendages in the sinuses ; anthers 

 separate; seeds broadly winged. 



In moist soil, Minnesota to British Columbia, south in 

 the Rocky Mountains to New Mexico, and in the Sierra 

 Nevada. Aug.-Oct 



8. Gentiana puberula Michx. Downy 



Gentian. (Fig. 2873.) 



Gentiana puberula Michx. Fl. Bor. Am. i: 176. 1803. 

 Perennial; stems usually solitary, leafy, S'-iS' 

 high, minutely puberulent, or glabrous, nearly 

 terete. Leaves firm, lanceolate, or the lower ob- 

 long, roughish-margined, indistinctly nerved, pale 

 beneath, narrowed or rounded at the base, 1'-$' 

 long; flowers sessile or nearly so in the upper 

 axils, rarely solitary and terminal, 2-bracteolate 

 under the calyx, i%'-2' high; calyx-lobes linear- 

 lanceolate, equal, about as long as the tube, rough; 

 corolla campanulate-funnelform, 2-3-times as long 

 as the calyx, its lobes ovate, entire, spreading, 

 much longer than the cleft or laciniate appendages; 

 anthers at first connivent, soon separate; seeds ob- 

 long, broadly winged. 



On prairies, Ohio to the Northwest Territory, Geor- 

 gia and Kansas. Aug.-Oct. 



2 



