254 LOBELIACE^E. (LOBELIA FAMILY.) 



* Flowers scarlet. 



1. L. cardinalis, L. (CARDINAL-FLOWER.) Smooth or slightly pubes- 

 cent ; stem stout, simple ; leaves lanceolate, denticulate ; bracts leafy ; stamens 

 and style much longer than the corolla. Muddy banks, Florida to Mississippi, 

 and northward. July - Sept. 1J. Stem 2 - 3 high. Raceme many-flowered. 

 Flowers very showy. 



* * Flowers blue and white. 

 - Sinuses of the calyx with deflexed appendages. 



2. L. syphilitica, L. Hairy ; leaves thin, lanceolate, acute at each end, 

 coarsely serrate ; racemes leafy, many-flowered ; calyx hairy ; the lanceolate 

 denticulate lobes half as long as the large (!' long) light blue corolla. Swamps 

 along the mountains, Georgia, and northward. Aug. and Sept. y. Stem 1- 

 3 high. 



3. L. puberula, Michx. Softly pubescent or villous, or sometimes nearly 

 smooth ; leaves thickish, mostly obtuse, lanceolate or oblong, glandular-den- 

 ticulate ; spikes mostly 1-sided ; calyx top-shaped, the linear lobes nearlv as 

 long as the tube of the bright blue corolla. Swamps and low ground, Florida 

 to Mississippi, and northward. Aug. and Sept. 1J. Stem 1- 2 high. Co- 

 rolla half as large as in the preceding. Appendages of the calyx obtuse. 



4. L. leptOStachys, A. DC. Closely pubescent; stem slender, simple; 

 leaves oblong-lanceolate, obtuse, denticulate ; flowers small, crowded in an elon- 

 gated spike ; appendages of the calyx 10, subulate, as long as the tube. South 

 Carolina and northward. July and Aug. 1J. Stem l-l high. Corolla 

 311-411 long. 



5. L. brevifolia, Nutt. Stem thick, virgate, angled, smooth or pubescent ; 

 leaves short (4" -12" long), fleshy, oblong-linear, obtuse, toothed, spreading or 

 reflexed ; the lowest wedge-shaped ; calyx hirsute, the ovate-lanceolate lobes 

 strongly toothed, the 5 appendages obtuse ; corolla pale blue. Damp open pine 

 barrens, Florida, Alabama, and westward. Oct. 1J. Stem l-l high. 

 Leaves very numerous. 



-<- < Sinuses of the calyx without appendages. 



6. L. amCBna, Michx. Smooth or rough-pubescent; leaves scattered, 

 oblong, obtuse, denticulate, the lower ones tapering into a long petiole, the 

 uppermost nearly sessile; racemes 1-sided, many-flowered; calyx-lobes linear- 

 subulate, mostly glandular ; corolla (!' long) bright blue. Swamps, Florida to 

 South Carolina, and westward. Sept. and Oct. y. Stem 2 - 4 high. Low- 

 est leaves 3' - 6' long. Bracts small. 



7. L. glaildulosa, Walt. Smooth or pubescent ; stem mostly simple, 

 nearly leafless above; leaves thick, linear or linear-lanceolate, glandular-den- 

 ticulate, sessile, the uppermost scattered and bract-like; racemes 1-sided, 3-9- 

 flowered, the flowers distant ; calyx smooth or hirsute, with linear glandular 

 lobes; corolla (8" -10" long) pale blue. Pine-barren swamps, Florida, North 

 Carolina, and westward. Oct. U Stem 2 - 4 long. Lower leaves 2' - 4' long. 



8. L. inflata, L. Pubescent or hairy; stem leafy, branching from the 

 base ; leaves oblong, obtuse, toothed, sessile : racemes leafy below ; corolla small, 



