ORDER 71. LOBELIACE^E. 195 



a Calyx lobes auricled at base, denticulate, shorter than corolla tube Nos. 24 



a Calyx lobes auricled at base, entire, linear, long as corolla tube Nos. 5, 6 



a Calyx lobes not auricled, entire, b very slender and long Nos. 79 



b much shorter than corolla. . .(c) 



c Leaves cauline, entire, few. Racemes loose, few-flowered Nos. 10 12 



c Leaves radical, entire. Racemes strict, few-flowered Nos. 13, 14 



1 L. cardinal!* L. Cardinal Flower. Tall, simple, glabrous; Ivs. oblong-lanceo- 



late, slightly toothed, acute at each end, sessile ; fls. in a terminal, bracted, secund 

 raceme. ; stem, longer than the corolla, y. Swamps. 2 4f. Splendid. 



/3. integtrrima. Leaves all very entire ; stem naked above. Northern N. Y. 



y. ciindida. Flowers white, the segments narrower. Mass. 



2 L. syphllitica L. Great Lobelia. Stem erect, angular; leaves oblong-lanceolate, 



acute or acuminate, unequally serrate, some hairy ; raceme leafy ; calyx hispidly cili 

 ate, with the sinuses reflexed. 2; By streams. 1 3f. Flowers 1'. 

 /3. alba. Flowers pure white. N. Y. (E. L. Hankenson ; G. M. Wilbur). 



3 It. glandulosa Walt. Subsimple, leafless above ; Ivs. lance-lin., acutish, and with 



the lanceolate, auricled sepals some glandular-toothed ; fls. few, remote, large (9") ; 

 cal. hispid or smoothish, short. U Damp barrens, Va., and S. 1J 2f. Sept. Oct. 



4 It. brevifolla N. Erect, simple, hispid; Ivs. 1', crowded, oblong-lin., denticulate; 



sep. ovate, fringe-toothed, half as long as cor. Damp, Fla. to La. 18'. (L. Ludov. C-B.) 



5 Li. leptostachys A. DC. Glabrous, erect, simple, virgate ; Ivs. lance-oblong; fls. 



small (4"), spike not secund ; auricles awl-shaped, long, u Prairies, W. and S. 1 2f. 



6 Li. pufoerula MX. Downy or smoothish, erect, simple ; Ivs. elliptic-ovate, denticu- 



late ; fls. large (7 8"), in a long, secund spike ; auricles ear-shaped. N. J., W. and S. 2f. 



7 It* amoeiia MX. Erect, simple, smooth ; Ivs. lanceolate, pointed both ways ; fls. large 



(S-9"), secund, numerous, in a long rac. ; bracts very small, u Swamps, Va., and S. 2f. 



8 l. spicata Lam. Erect, simple, puberulent ; Ivs. oblong, mostly obtuse ; fls. small 



(3-4"), crowded in a slender rac. ; pedicels and bracts as long as the fl. Dry soils. l-2f. 



9 Li. liiflata L. Indian Tobacco. Erect, branching, hairy; Ivs. ovate-lanceolate, ser- 



rate; fls. short (4"), with leafy bracts ; caps, inflated, large. Fields. If. Narcotic. 



10 Li. Boykinii T. & G. Slender, smooth; branches erect; Ivs. awl-shaped, erect; 

 fls. small (4"), on filiform ped. in long, loose racemes. Wet sands, Ga. Fla. 2f. Lvs. 6". 



11 Li. XuttaJlii DC. Erect, very slender, smooth ; Ivs. few, linear, remote ; fls. few, 

 small (3") ; ped. as long as cor. ; cal. tube almost none. @ Swamps, L. L, and S. l-ljf. 



12 L.. Kalmii L. Simple or branched ; rt. Ivs. spatulate, st. Ivs. lance-lin. tolin., all 

 obtuse ; rac. loose, leafy ; ped. about equalling the showy blue-wh. fls., minutely bract- 

 ed, or naked (in same specimen) ; cor. 5", lobes obovate. Rocky swamps, E. &W. 6-18'. 



13 Li. paludosa N. Lvs. lin.-spat., thickish, obtuse, petiolate; scape simple, nearly 

 naked ; rac. loose, ped. about as long as the cal. Bogs, Del., and S. 2-3f. Lvs. 5-KK. 



14 Li. Dortmauna, L. Lvs. submerged, tufted, linear, entire, hollow with 2 longi- 

 tudinal cells, short, obtuse ; scape simple, nearly naked ; fls. in a terminal raceme, re- 

 mote, pedicellate, nodding. 11 In ponds, N. States. 2 3f. Only the fls. emerging. 



15 Li. FULGENS. Downy, erect, simple; Ivs. narrow -lane., revolute at edge, ll Mex. 3f. 



1 6 Li. SPLENDENS. Smooth, erect ; Ivs. narrow-lane., flat ; fls. large, in long rac. Mex. 3f. 



1 7 Li. ERTNUS. Slender, diffuse ; Ivs. toothed, ellip. to lin. ; fls. scattered, bluish. S. Afr. 



1 8 Li. CCELESTINA, a garden variety, with larger blue flowers, yellow in the centre. 



2. DOWNINGIA, Torr. Sep. 5, linear. Cor. 2-lipped, tube not split, 

 upper lip 2-parted, erect, lower lip 3-lobed. Stam. tube incurved. Caps. 

 Clique-form, 1-celled, oo-seeded, opening by 3 linear valves. (I) Low, with 

 axillary, solitary flowers. (Clintonia, Doug.) 



1 D. ELEGANS. Stem few-branched, angular ; Ivs. ovate, acute ; ovary curved, 3-angled, 



longer than the Ivs. ; corolla blue with a white palate. Oregon ! 6 12'. July, Aug. 



2 D. VULCHELLA. Stem much branched ; Ivs. obtuse ; fls. 8", middle lobe longest. Cal. I 



