268 ORDER 97. GENTIANACE^E. 



cluster dense, terminal; calyx segments ovate-oblong, 34" ; corolla 18", Inflated, 

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



8 G. Saponarla L. Subsimplc, stout, smooth ; leaves oblanceolate to lance-oblong, 



3-veined ; calyx segments linear, 6 8" ; corolla 2', folds much shorter than the open 

 erect lobes. N. J., Pa., to 111., and S. 2f. Leaves 23'. 



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



calyx segments subulate, 4 V ; corolla folds subentire, much shorter than the erect 

 or spreading lobes. N. Eng. (rare) to Iowa and Ky. 1 l^f. July Sept. 



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

 rough-edged, clasping, acute; calyx segm. lanceolate, 5"; corolla subcampanulate, 

 15", lobes very acute, folds short, cleft. Prairies, W. and S. 9 18 7 . 



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

 subcumpanulate. pet. slightly united. Stig. thick, some bifid. Sds. very 00 

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



1 It. vcrna Muhl. Low, simple, 3 5', clustered ; ped. 1-flowered, petals 3", oblong, 



obtuse, sepals 1", acute. Bogs and barrens, Va. to Fla. March. 



2 B. ten el la Muhl. Branched above, very elender, 5 12'; ped. opposite, erect, sub- 



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

 /3. bracliiaia. Pedicels bent ontward and upward, pome 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. 

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

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

 F Caroliiiensis Walt. Smooth, 4 9f high I paniculate above ; Ivs. oblong, sessile, 



in 4's 6's ; petals greenish with blue dots, and a large purple gland. Rich soils, 

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



7. HALENIA, Borkh. 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. 



H. deflexa Griseb. Erect, branched, lower leaves oblanceolate, upper lance-ovate, 

 3-5-veined ; spurs slender, curved outward, half as long as the 4" greenish-yellow 

 petals. (2) 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 GO, very minute. U Flowers sessile, pale. 



O Virginica L. Woods, N. J., W. and S. Stem 48', subsimple. 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-lobed, villous within, no glands at the 

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

 actively medicinal. Leaves trifoliate, nearly radical. 



M. trifollata 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. 



