GENUS i. 



4. Lobelia syphilitica L. 



Blue Cardinal-flower. 



LOBELIA FAMILY 



Great Lobelia. 

 Fig. 4031. 



Lobelia syphilitica L. Sp. PI. 931. 1753. 

 Lobelia syphilitica ludoviciana A. DC. Prodr. 7: 377. 

 1839. 



Perennial by short offsets; stem sparingly pubes- 

 cent, rather stout, very leafy, usually simple, i-3 

 high. Leaves glabrous or sparingly puberulent, 2 r ~6' 

 long, \'-2 r wide, oval, oblong, or lanceolate, acute 

 or acuminate at the apex, narrowed at the base, re- 

 pand-denticulate, irregularly crenate-dentate or near- 

 ly entire, sessile, or the lower obovate, obtuse and 

 narrowed into petioles ; flowers bright blue, or occa- 

 sionally white, io"-i2" long, densely racemose, leafy- 

 bracted ; calyx-lobes lanceolate, acuminate, pubescent 

 or ciliate, the sinuses appendaged by large deflexed 

 auricles ; corolla-tube 5 "-6" long, about 2" thick, the 

 lobes of its larger lip oblong-oval, obtuse or acutish, 

 glabrous ; larger anthers glabrous. 



In moist soil, Maine and Ontario to South Dakota, 

 Colorado, Georgia, Louisiana and Kansas. Hybridizes 

 with the preceding species. High-belia. July-Oct. 



5. Lobelia amoena Michx. Southern Lobelia. 

 Fig. 4032. 



Lobelia amoena Michx. Fl. Bor. Am. 2: 152. 1803. 

 Lobelia amoena glandulifera A. Gray, Syn. Fl. 2: 4. 1878. 



Nearly glabrous throughout, perennial ; stem simple, 

 slender, leafy, i-4 high. Leaves thin, ovate to oblong- 

 lanceolate, narrowly oblong, or oval, repand-dentate or 

 denticulate, the lower petioled and mostly obtuse, 2'-6' 

 long, the upper sessile, acute or acutish, smaller; flowers 

 blue, racemose, nearly i' long; bracts narrow and small, 

 or the lower foliaceous, glandular ; pedicels i"-2i" long ; 

 calyx-lobes linear-subulate, acuminate, glabrous, glandu- 

 lar, elongated, the sinuses usually not auricled; corolla- 

 tube 5"-7" long, ii"-2" thick; larger anthers glabrous, or 

 puberulent at the tip ; lobes of the larger lip of the co- 

 rolla broadly ovate to oval, obtuse, glabrous. 



In swamps, Delaware to Florida and Alabama. July-Sept. 



6. Lobelia elongata Small. Long-leaved 

 Lobelia. Fig. 4033. 



L. elongata Small, Fl. SE. U. S. 1144. 1903. 



Perennial, at least by offsets, glabrous or nearly 

 so; stem simple, i-3 tall, commonly wand-like. 

 Leaves rather few, erect or ascending, linear or 

 nearly so, I '-4' long, mostly acute, serrate or 

 dentate-serrate with gland-tipped teeth, sessile or 

 narrowed into petiole-like bases ; flowers deep- 

 blue in rather closely flowered, but not densely 

 flowered, one-sided racemes 4,' -12' long ; bracts 

 linear to lanceolate, serrate with gland-tipped 

 teeth, the lower ones sometimes surpassing the 

 corollas ; calyx-lobes elongate, linear-subulate or 

 linear-setaceous, entire, as long as the corolla or 

 shorter, without auricles at the sinuses ; corolla- 

 tube s"-8" long, lobes of the lower lip oval or 

 ovate, glabrous. 



In low grounds or swamps, Virginia to Florida and 

 Louisiana. Aug.-Oct. 



