CAM PANULACEAE. 



[Vol. IIP. 



3. Lobelia cardinalis L. Cardinal-flower. 



Red Lobelia. (Fig. 3502.) 

 Lobelia cardinalis L. Sp. PI. 930. 1753. 



Perennial by offsets; stem slightly pubescent, or 

 glabrous, leafy, simple or rarely branched, 2-4^ 

 high. Leaves oblong, oval, ovate-lanceolate, or 

 lanceolate, thin, glabrous or sparingly pubescent, 

 2 / -6 / long, X /-I K / wide, acuminate or acute at 

 both ends, crenulate or denticulate, the upper ses- 

 sile, the lower petioled; flowers racemose, com- 

 monly numerous, bright scarlet or red (rarely 

 white;, i / -ij^ / long; bracts usually glandular; 

 calyx glabrous or pubescent, its lobes linear, elon- 

 gated, acute; corolla-tube nearly or quite i / long; 

 larger anthers glabrous. 



In moist soil, New Brunswick to Florida, west to the 

 Northwest Territory, Kansas and Texas. July-Sept. 



4. Lobelia syphilitica L. Great Lobelia. 

 Blue Cardinal-flower. (Fig. 3503.) 



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



Perennial by short offsets; stem sparingly pubes- 

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

 high. Leaves thin, green, glabrous or sparingly 

 puberulent, 2 / -6 / long, y^'-i' wide, oval, oblong, or 

 lanceolate, acute or acuminate at the apex, nar- 

 rowed at the base, repand-denticulate, or irregularly 

 crenate-dentate, sessile, or the lower obovate, obtuse 

 and narrowed into petioles; flowers bright blue, or 

 occasionally white, io // -i2 // long, densely race- 

 mose, leafy -bracted ; calyx-lobes lanceolate, acumi- 

 nate, pubescent or ciliate, the sinuses appendaged 

 by large deflexed auricles; corolla-tube 5 // -6 // long, 

 about 1" thick, the lobes of its larger lip oblong- 

 oval, obtuse, glabrous; larger anthers glabrous. 



In moist soil, Maine and Ontario to Minnesota and 

 Dakota, south to Georgia, Louisiana and Kansas. Said 

 to hybridize with the preceding species. July-Oct. 



Lobelia syphilitica Ludoviciana A. DC. Prodr. 7: 377. 1839. 

 Glabrous or very nearly so; leaves thick, pale green, oblong or lanceolate, nearly entire, the 

 lower obtuse and spatulate; calyx-lobes sparingly pubescent; lobes of the larger lip of the corolla 

 acutish. Nebraska to Louisiana. 



5. Lobelia amoena Michx. Southern Lobelia. 

 (Fig. 3504.) 



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



Nearly glabrous throughout, perennial; stem simple, 

 slender, leafy, i-4 high. Leaves thin, oblong-lanceo- 

 late, narrowly oblong, or oval, repand-dentate or denticu- 

 late, the lower petioled and mostly obtuse, 2 / -6 / long, 

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

 racemose, nearly \ f long; bracts narrow and small, or the 



lower foliaceous, glandular; pedicels i // -2^ // long; 

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

 gated, the sinuses usually not auricled; corolla-tube 5"- 

 7" long, i^ // -2 // hick; larger anthers glabrous, or pu- 

 berulent at the tip; lobes of the larger lip of the corolla 

 broadly ovate to oval, obtuse, glabrous. 



In swamps, North Carolina to Florida; probably within- 

 our area, though not reported. July-Sept. 



Lobelia amoena" glandulif era A. Gray, Syn. Fl. 2: Part 1, 4. 1878. 

 Smaller, stem very slender; leaves i'-a' long, mostly obtuse, glandular-dentate; bracts small, 

 very glandular; raceme som?what secund; sinuses of the calyx sometimes slightly auricled, the 

 lobes commonly glandular. Southern Delaware and Virginia to Florida and Alabama. 



