1144 LOBELIACEAE 
ones spatulate, obovate or cuneate, the upper narrowly or linear-oblong, 0.5-2.5 cm. long, 
obtuse, strongly toothed, sessile: raceme 0.5-4 dm. long, spike-like : pedicels erect or ap- 
pressed, more or less pubescent, about as long as the strongly toothed bracts: sepals rigid, 
pectinate-toothed, each with two obtuse auricles at the base : corolla pale blue : capsules 5-7 
mm. high, with a broadly turbinate ribbed base and a conic beak : seeds tuberculate. 
In moist pine lands, Florida to Louisiana. Summer and fall. 
4. Lobelia syphilítica L. Annual or perennial, slightly pubescent with scattered 
spreading hairs. Stems erect, 2-6 dm. tall, sometimes sparingly branched: leaf-blades 
oblanceolate, elliptic or lanceolate, 2.5-20 cm. long, acute or obtuse, coarsely serrate or 
sinuate-dentate, the lower ones petioled, the upper sessile: raceme 1-5 dm. long, the 
lower bracts leaf-like: hypanthium bristly-pubescent : sepals bristly-ciliate, long-acumi- 
nate, with an ovate base, each prolonged below into 2 acute auricles: corolla blue striped 
with white, or rarely white, tube slightly longer than the sepals, the lobes on either side 
of the cleft lanceolate, more or less curled, acuminate, the three lower lobes ovate, acute 
at the base, glabrous: capsules 8-10 mm. in diameter: seeds 1 mm. long, longitudinally 
wrinkled. 
In wet places and swamps, valley of the St. Lawrence to South Dakota, Colorado, Georgia and 
Louisiana. Summer and fall.—A form, L. syphilitica Ludoviciàna A. DC., with glabrate foliage and 
nearly entire and thicker leaf-blades, oceurs from Nebraska and Colorado to Louisiana. 
5. Lobelia pubérula Michx.  Perennial, softly pubescent with fine close hairs, or 
glabrate. Stems erect, 3-10 dm. tall, simple, virgate, sometimes zigzag: leaf-blades spread- 
ing or ascending, thick, 2-10 em. long, the lower ones oblanceolate, oblong or obovate, short- 
petioled, the upper varying from oblong to lanceolate or ovate, sessile, all finely toothed 
or nearly entire: raceme 0.5-5 dm. long, its lower bracts sometimes leaf-like: pedicel 
shorter than the hypanthium : sepals sometimes bristly, lanceolate, entire or sparingly 
toothed, revolute, with short rounded auricles: corolla deep blue or rarely white, about 
1.5 cm. long ; tube slightly longer than the sepals ; lobes on either side of the cleft lanceo- 
late, the other 3 ovate or the middle one ovate-lanceolate, glabrous within: capsules 7-9 
mm. thick, the conic beak as long as the base: seeds obovoid or oval, 0.7-0.9 mm. long, 
tuberculate. 
In meadows and wet woods, New Jersey to Missouri, Florida and Texas. Summer and fall.—A 
pcne pre form with glabrate foliage and more naked virgate racemes is L. puberula laeviáscula C. 
ohr. 
6. Lobelia amoéna Michx. Perennial, glabrous or finely pubescent in parts. Stems 
erect or ascending, 3-12 dm. tall, leafy throughout, usually simple : leaf-blades deep green, 
thinnish, oblong or elliptic, varying to broadest above or below the middle, undulate or 
rather coarsely sinuate, paler beneath than above, the lower ones narrowed into margined 
petioles, the upper sessile or nearly so: raceme usually 1-5 dm. long, often 1-sided : bracts 
variable in length, undulate or sharply toothed: sepals usually longer than the pedicels, 
narrowly linear or linear-subulate, 7-8 mm. long, barely if at all auricled at the base, 
entire or nearly so: corolla blue or rarely white, 2-2.5 cm. long, about as long as the 
sepals or much longer: capsules 6-7 mm. broad, mostly inferior. 
In swamps or on damp hillsides, North Carolina to Florida. Summer and fall. 
7. Lobelia glandulífera (A. Gray) Small. Perennial, glabrous or nearly so. Stems 
erect, 3-7 dm. tall, simple, rather strict: leaves usually few ; blades narrowly oblong to 
oblong-ovate, 3-12 cm. long, rather coarsely and irregularly dentate with gland-tip 
teeth, the lower ones narrowed into margined petioles, the upper sessile : raceme VIT te, 
few-flowered, 1-3 dm. long: bracts ovate to lanceolate, conspicuously glandular-toot : 
hypanthium commonly surpassing the bract, much longer than the pedicel : sepals nar- 
rowly lanceolate or linear-lanceolate, 7-9 mm. long, pectinately glandular-toothed, more 
or less strongly auricled at the base : corolla blue, about 1.5 cm. long ; tube surpassing the 
sepals: capsules 4-6 mm. broad. [L. amoena var. glandulifera A. Gray.] 
In low grounds, Virginia to Florida and Alabama. Summer and fall. 
8. Lobelia elongàta Small. Perennial, at least by offsets, glabrous or Hearty aa 
Stems erect or ascending, 3-12 dm. tall, simple, commonly wand-like : leaves - er iA 
erect or somewhat spreading ; blades linear or nearly so, 2-10 cm. long, mostly le-like 
serrate or dentate-serrate with gland-tipped teeth, sessile or narrowed into petlo ‘ghia 
bases: raceme rather closely but not densely flowered, 1-3 dm. long, one-sided depri 
linear to lanceolate, serrate with gland-tipped teeth, the lower ones sometimes p anm “ d 
the corollas: flowers short-pedicelled : sepals elongated linear-subulate or linear-setace , 
entire, as long as the corolla or shorter: corolla deep blue, showy, ascending: capsules 
mm. broad. 
In low grounds or swamps, Virginia to Florida and Louisiana, Summer and fall. Rinne 
9. Lobelia glanduldsa Walt. Perennial, glabrous below the inflorescence. cae: 
erect or decumbent, 3-12 dm. long, simple or nearly so, wand-like, sometimes Zig 
