268 ORDEK 97. GENTIANACE^E. 



cluster dense, terminal ; calyx segments ovate-oblong, 3 1" ; corolla 18", Inflated, 

 ntrer opening, folds as long as segments. Woods, N. Eng. to Fla. 2f. 



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



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

 eroct lobes. N. J., Pa., to 111., and 8. 2f. Leaves 2 3'. 



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



calyx segments subulate, 4 7"; corolla folds subentire, much shorter than the erect 

 or spreading lobes. N. Eng. (rare) to Iowa and Ky. 11 Jf. July Sept. 



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

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

 15", lobes very acute, folds hort, cleft. Prairies, W. and S. 918'. 



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

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

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



1 B. verna Muhl. Low, simple, 3 5', clustered ; peel. 1-llowered, petals 3", oblong, 



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



2 B. teiiella Muhl. Branched above, very slender, 512' ; ped. opposite, erect, sub- 



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

 0. brarliiala. 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. 

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

 tic, margined. 1C Showy and tall, with opposite or verticillate leaves. 



F. Carolliieiisis Walt. Smooth, 4 Of high ! paniculate above ; Ivs. oblong, sessile, 

 in 4's <?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, Jnly. 



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. @ N. Eng. (rare) to Win. 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. U Flowers sessile, pale. 



O Vlrginlca L. Woods. N. J., W. and S. Stem 4 8', subsimple. Leaves roundish, 

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



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

 or funnel-form, limb spreading, 5-lobed, villons 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 inuddy places, Penn. to Cal., and N. 812'. Petioles long and 

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



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

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



