268 ORDER 97. GENTIANACEJE. 



cluster dense, terminal ; calyx segments ovate-oblong, 3 4" ; corolla 18", Inflated, 

 never opening, folds as long as segments. Woods, N. Eng. to Fla. 2f. 



8 G. Sapoimria L. Snbsimple, stout, smooth ; leaves oblanceolate to lance-oblong, 



3-veined ; calyx segments linear, (3 8" ; corolla 2', folds much shorter than the open 

 erect lobes. N. J., Pa., to 111., and S. 2f. Leaves 2 8'. 



9 O. liiiearis Wood. Simple, slender ; Ivs. lance-linear to linear, l-(rarely 3-)veined ; 



oalyx segments subulate, 4 7" ; corolla folds subentire, much shorter than the creel 

 or spreading lobes. N. Eng. (rare) to Iowa and Ky. 1 IJ-f. Jnly Sept. 



10 CJ. puberula MX. Slender, rough or puberulent ; leaves 1', oval to ovate, very 

 rough-edged, clasping, acute; calyx scgm. lanceolate, 5"; corolla tsubcampanulatc, 

 15", lobes very acute, folds hort, cleft. Prairies, W. and S. !> 18'. 



5. BARTONIA, Mulil. SCREW-STEM. Fls. 4-parted, persistent. Cor. 

 .subcampanulate, pet. slightly united. Stig. thick, some bifid. Sds. very GO 

 and minute. if Slender, erect, with scale-like Ivs. and small white fls. 



1 B. verua Mulil. Low, simple, 3 5', clustered ; ped. 1-flowcred, petals 3", oblong, 

 obtuse, sepals V, acute. Bogs and barrens, Ya. to Fla. March. 



JJ B. tenella Muhl. Branched above, very slender, 5 12' ; ped. opposite, erect, sub- 

 equal, 4" ; petals pointed, 1", sepals nearly as long. Wet. Mass, to Fla. August. 

 /3. brachiiitn. Pedicels bent outward and upward, some alternate. S. 



6. FRASERA, "Walt. COLUMBO. Fls. mostly 4-parted. Pet. united 

 at base, oval, spreading, each with 1 or 2 bearded glands in the middle. 

 Sly. 1, stig. 2, distinct, Caps, compressed, 1-celled. Seeds few, large, ellip- 

 tic, margined, If Showy and tall, with opposite or verticillate leaves. 



F. Caroliiieiisis Walt. 'Smooth, 4 9f high ! paniculate above ; Ivs. oblong, sessile, 

 in 4 T s G's ; petals greenish with blue dots, and a large purple gland, llich soils, 

 N. Y., S. and W. A statety plant, and a good tonic. June, July. 



7. HALENIA, Borkli. FELWORT. Flowers 4-parted, broad bell-form. 

 Each petal prolonged at base into a spur, which is glandular at the end. 

 Stigmas 2, sessile. Flowers panicled. 



Kf. dcflexa Griseb. Erect, branched, lower leaves oblanceolate, upper lance-ovate, 

 o-5-veined ; spurs slender, curved outward, half as long as the 4" greenish-yellow 

 petals. @ N. Eng. (rare) to Wis. 18'. August. 



8. OBOLARIA, L. PENNYWORT. Calyx of 2 wedge-oblong sepals. 

 Corolla tube-bell-form, 4-cleft, Sta, on the corolla. Stigma sessile, bifid. 

 Seeds oo, very minute, if Flowers sessile, pale. 



O Virg inica L. Woods, N. J., W. and S. Stem 4 8', subfiiinple. Leaves roundish, 

 sessile, thick, crowded above, sepals similar. April, May. 



9. MENYANTHES, Tourn. BUCK BEAN. Cal. 5-parted. Cor. rotate 

 or funnel-form, limb spreading, 5-lobcd, villous within, no glands at the 

 base. Stamens 5. Style 1, stigma bifid. Capsule 1-celled. Bitter herbs, 

 actively medicinal. Leaves trifoliate, nearly radical. 



HI. trifoliata L. In muddy places, Penn. to Cal., and N. 812'. Petioles long and 

 round. Scapes bearing racemes of handsome, flesh-colored flowers. May. 



10. LIMNANTHEMUM, Gmel. FLOATING HEART. Cal. 5-parted. 

 Cor. rotate, each seg. with a glandular scale at base. Sty. short or 0, stig. 



