GENTIANACE^. 237 



3. G. ochroleuca Frc^l. .- stem ascending ; leaves ovate-lanceolate and 

 obovate, rough on the margin ; flowers aggregated, subsessile, bracteate ; 

 lobes of the calyx unequal, as long as the tube ; corolla with the lobes 

 acute, and the plaits very short and entire. G.Saponaria Walt. G. villosa 

 Linn. 



Sandy fields. N. J. to Flor. Aug., Sept. %.—Stem 9—15 inches high, sim- 

 ple, somewhat angular, the angles a little rough. Flowers yellowish- white, 

 tinged with green and purple, in a terminal bracteate fascicle. 



Yellowish Gentian. 



4. G. angustifolia Mich. : stem terete, simple, slender, 1-flowered ; leaves 

 linear, obtuse, smooth on the margin ; calyx deeply 5-cleft, with the lobes 

 linear; lobes of the corolla ovate-oblong, obtuse, twice as long as the calyx, 

 the plaits many-cleft or lacerate. G. purpurea Walt. 



Sandy fields. N. J. to Car. Aug., Sept. %.—Stem a foot high. Flower 

 large, sky-blue, terminal. Narrow-leaved Gentian. 



** Corolla funnel-form, without plaits. 



5. G. quinqueflora Lam. : stem square, branched ; leaves ovate-lanceo- 

 late, subclasping, acute, 5-nerved ; flowers somewhat in fives, axillary and 

 terminal, pedicellate ; corolla 5-cleft, the lobes triangular and setaceously 

 acute. G. amarelloides Mich. G. quinq^ief alia Linn. 



Woods. N. Y. to Car. W. to Miss. July, Aug. %. \— Stem 12—18 inches 

 high. Flowers small, pale blue, generally 3—5 on the summit of the branches. 



Five-jlowered Gentian. 



*** Corolla fimbriate on the margin, without plaits. 



6. G. delonsa Fries : stem erect ; leaves oblong-lanceolate or linear, 

 scabrous on the margin, spatulate at the base; corolla 4— 5-lobed; the 

 lobes oblong, obtuse, cihate at base, crenate at the summit. (D. C.) 



Wet limestone rocks. Goat Island, Niagara Falls, N. Y. Torr. N. to Hudson 's 

 Bay. W. to the Rocky Mountains. Sept. ©.—Siem 8— 12 inches high, mostly 

 simple. Leaves 1—2 inches long. Flowers 1—3, on elongated terminal pedun- 

 cles, bright blue ; the tube yellowish^and white. Distinguished from the next 

 by its narrow leaves and less fringed corolla. Smaller Fringed Gentian. 



7. G. crinita Willd. : stem erect, branched above ; branches elongated, 

 l-flowered; leaves lanceolate, rounded or cordate at base; the lower' ones 

 obovate, obtuse; corolla 4-<sleft; the lobes cuneate-obovate, fringed at 

 the top. 



Pastures and woods. Can. to Car. Sept., Oct. (^ I— Stem 1—2 feet high, 

 terete below, square above. Flowers large, bright blue, on peduncles at the 

 ends of the branches. Large Fringed Gentiar^ 



2. HALENIA. i?orM.— Halenia. 



(Etymology unknown.) 



Calyx 4 — 5-parted. Corolla campanulate, 4 — 5-cleft; the 



lobes erect, equalling the tube, with a glanduhferous spur at 



the base. Stamens 4 — 5. Stigma 2-lobed, nearly sessile 



Capsule 1-celled, 2-valved, many-seeded. 



