Order 95.— GEUTIANACB^. 585 



a Flowers solitary, terminal, blue or white. No. 4 



a Flowers clustered, — ^yellowish or cream-white Nos. 5, 6 



— blue, — never opening; the folds as long as segments No. 7 



— opening; the folds shorter than segments Nos. 8, 9 



1 G. quinqueflora L. St. 4-angled, branching; Ivs. ovate-lanceolate, acute, 

 3-veined ; fls. terminal and axillary, aiout in 5s, pedicellate ; cor. tubular-campan- 

 ttlate, with 5 lanceolate, seiaceously acmninate segments; oal. very short, segm. 

 subulate-liuear. (g) Woods and pastures Can. and U. S. Stem a foot high, smooth, 

 generally branched. Leaves 3 — 5-veined, half-clasping, acute, smooth. Fls. 

 small, on pedicels half an inch in length. Corolla pale blue, i times as long as 

 the sepals. Sept., Oct. 



p. PAEvirLOEA. Cal. enlarged, lobes foliaceous, lance-linear, half as long as 

 the smallish corolla. — This variety prevails in the W. States. 



2 G. crinita rrcelich. Blue Frinsed Gbntian. St. terete, erect ; Ivs. lanceolate, 

 acute ; fis. tetramerous ; cor. segm. conspicuotisly fringe-ciliaie. — Not uncommon 

 in cool, low grounds, Can. to Car. Stem If high, round and smooth. Branches 

 long, with a slight curve at base, becoming erect and straight, each bearing a 

 single, large, erect flower at the leafless top. Leaves broadest at base, tapering 

 to the apex, 1 — 2' long and J as wide. Calyx square, segm. acuminate, equaling 

 the tube of the corolla. Cor. of a bright bluish-purple, the segments obovate, 

 finely fringed at the margin. Aug. — A beautiful and interesting plant. 



3 G. detonsa L. St. nearly strict, simple or branched ; Ivs. linear and lance-linear, 

 the lowest rosulate, spatulate; ped. l-flowered, very long, subsolitary ; cal. 4 ( — 5)- 

 clefl, lobes ovate and lanceolate, nearly equaling the corolla ; cor. lobes roundish- 

 obtuse, ciliate at the sides, crenate at top, erect-spreading ; stig. distinct. — N. Y., 

 Wis. (Lapham) N. to Hudson's Bay. A fine species, with large blue flowers. 

 Stem a foot high. Leaves 1 — 2J' by 1 — 3", tapering to an acute point. Pedun- 

 cles 4 — X long, each with a single large, erect, showy flower. Cor. 15 — 20" long, 

 obconic or bell-shaped, blue. 



4 G. angustifolia Mx. St. erect, slender, l-flowered ; fls. pedunculate ; Ivs. lin- 

 ear obtuse, smooth, the lower ones subcuneate ; cor. funnel-form, narrow, open, 

 5-cleft, twice as long as the calyx, lobes ovate-oblong, obtuse, twice as long aa 

 the lacerate folds. — 2f N. J. to Fla. in sandy fields. Stem a foot high. Lvs. 1' 

 long. Flower large, sky-blue, 20" long. Calyx deeply cleft, with linear segm. 

 Sept., Oct. — A variety at the South (Quincy, Fla., Dr. Danalson) has white fls. 

 18" long. 



5 G. oohroleuca Froel. Sts. nearly or quite smooth, simple, terete ; fls. sessile, 

 clustered at summit, rarely in one or two of the upper axils ; lvs. oval-lanceolate, 

 the highest lanceolate, lowest obovate-lanceolate, all narrowed to the sessile base, 

 obscurely 3-nerved, rather acute ; cal. segm. lance-linear, a third longer than the 

 tide, nearly as long as the greenislirwhite, open corolla. — ^Ta. to Fla. frequent. Sts., 

 about If high. Lvs. much longer than the intemodes. Cor. 2' long, with green 

 veins and purple stripes, lobes ovate, folds very short. Sept., Oct. 



6 G. dlba Muhl. (Gray). Very smooth ; St. stout, erect ; fls.' densely clustered 

 at the summit, solitary in one or two axils ; lvs. ovate-lanceolate, or lanceolate, 

 haif clasping at the broad base, gradually acuminate, 3-veined ; cal. segm. ovate, 

 much shorter than its bell-shaped tube, 4 times shorter tlian the cream-white coroUa. 

 Woods and prairies. Middle, W. and S. States. St 1 to 2f high. Lvs. 3 to 4' by 

 1' to 18". Cor. 30" long, the ovate lobes much longer than the jagged appendages 

 or folds, open but connivent. Jl. — Sept. (G. oohrolenca Griseb. &c.) 



7 G. Andrewsii Griseb. Closed Blue Gentian. Lvs. oval-lanceolate, 3-veined, 

 acute ; fls. in whorled heads, sessile cor. ventricous, davate-campanulate, closed 

 at top, 10-cleft, the inner segments plicate and fringed, equaling the exterior; cal. 

 segm. ovate-oblong, many times shorter than the deep blue corolla. — 11 Brit. Am. 

 to Oar. A handsome plant, conspicuous in meadows and by brook-sides. Stem 

 12 — to 18' high, simple, erect, smooth, with opposite, smooth leaves, scabrous on 

 the margin, resembhng those of the common Soap wort. , Flowers erect, 18" long, 

 subsessile, inflated, so nearly closed at the top as to be easily mistaken for buds ; 

 and the young botanist waits in vain to see them expand. Sept., Oct. (G. Sap- 

 onaria, 2d. edit, &o.) 



