Obder 95.— GENTIAN ACEJ3. 58> 



glands at the base of the spur ■within ; stigmas 2, terminating the 



acuminate ovary ; capsule 1-eelled ; seeds indefinite, obtuse, fixed to 



the sutures of the valves. — Erect, branching. 



H. deflexa Griseb. St. erect, leafy; lvs. 3 to 5-veined, radical ones oblong-spatu- 

 late, tapering into a petiole, cauiiuo ones oblong-lanceolate, acute, sessile ; spura 

 cylindric, obtuse, deflexed, half as long as the corolla. — !g; Swamps, Can., Ban- 

 gor, Maino (Miss Towle), N. Y., and Wis., rare. Stem about 18' high, obtusely 

 4-angled, smooth, with few branches above. Leaves H — 2' long, -J as widcv 

 Flowers greenish-yellow, in terminal fascicles. Corolla persistent, with 4 spread- 

 ing horns or spurs descending between the 6epals. Aug. (Swertia Mx.) 



7. OBOLA'RIA, L. Pennywort. (Gr. 6/3o/l6c, a small coin ; from 

 the form of the leaves.) Calyx of 2 cuncate-oblong sepals or bracts", 

 corolla tubular-campanulate, marescent, 4 -cleft, lobes entire or crenu- 

 late; stamens inserted on the corolla at the clefts; stigma subcapitatc, 

 "bifid; capsule 1-cellcd, 2-valved ; seeds co, very minute. — 21 Lvs. op- 

 posite. J" Is. axillary and terminal, sessile, with leaf-like sepals. 



O. Virginica L. Perm, to Car., TV", to Ky., in woods. Stem 4 — 8' high, often in 

 clusters, subsimple or with a few opposite branches above. Leaves cuneate-obo- 

 vate or roundish-rbomboidal sessile and decurrent at base, fleshy, obtuse or trun- 

 cate at apex, lower ones small and remote, upper crowded, glaucous-purple, sepals 

 or bracts similar. Corolla pale purple or whitish, longer than the stamens. Cap- 

 sule ovoid, obtuse., surrounded by the withered corolla. Apr., May. 



8. MENYANTHES, Tourn. Buck Bean. (Gr. prjv, a month, avQor- ; 

 reputed an emenagogue.) Calyx 5-parted ; corolla rotate or funnel- 

 form, limb spreading, 5-lobcd, villous within, without glands at the base; 

 .stamens 5 ; style 1; stigma bifid; capsule 1-celled. — Bitter herbs, ac- 

 tively medicinal. Lvs. trifoliate. 



3M[. trifoliata L. Grows in swamps, margins cf ponds, etc., N. Am N. of lati- 

 tude 38°. This fine plant arises from large, black roots descending deep intotho 

 boggy earth. Stem 8 — 12' high, round. Leaves on long, round footstalks sti- 

 puled at base. Leaflets ebovate. Peduncle long, naked, terminal, bearing a pyra- 

 midal raceme of flesh-colored flowers. Pedicels thick, bracteate at base. Sepals 

 obtuse, about a third as long as the corolla. Petals acute, about a3 long as the 

 stamens, remarkably and beautifully distinguished by tho .soft, fringo-likc hairs at 

 ihe base and in the throat of the tube. May. 



9. LIMNAJVTHEMUM, GmeL Floating Heart. (Gr. Xipvq, a 

 Sake or pool, avOF.fiov, a flower ; from its aquatic abode.) Calyx 5-parted ; 

 corolla 5-parted, rotate, segrn. furnished with a glandular scale at base, 

 ■often bristly; stamens 5; style short or none; stigma 2-lobed ; capsule 

 many-seeded, 1-celled, opening by deca}'. — 2£ Curious aquatics, gener- 

 ally in stagnant water. Petioles long, bearing the flowers in an um- 

 bellate cyme below the roundish leaf, and oblong or cylindric tubers 

 capable of producing new plants. {Villarsia Vent.) 



i L. lac-unosum Griseb. Lvs. small (I to 2' diam.), orbicular, cordate, entire 

 smooth above, pitted and rugous beneath ; cor. segrn.. twice as long as calyx, broad' 

 obovale, smooth, gland at base, subsessile, hairy ; cap3. ovoid, little longer than tho 

 calyx ; seeds not mwicaie, shining. — In shallow waters, Me., Mass., N. Y. to Car. 



• Petioles I to -31' long. Leaf 1 to 2' diam., lobes diverging and somewhat angled, 

 upper surface green, Sower purplish. Umbel half an inch below the blade, sub- 

 mersed pendulous, the fls. one by one rising above the water as they expand. 

 Cor. 7 to 8" broad, white, tube and glands yellow. Jl. (V. cordata E1L V. 

 lacunosa Vent.) 



2 L. trachysperamm Gray. Lvs. reniforrn, oval or orbicular, somewhat peltate*, 

 .coriaceous, obscurely cremate, smooth above, spongy and pitted beneath; cor. 



