CAMPANULACEAE. 887 



X. Jasione montelna L. SIIEEP'S-BIT. Annual or biennial, with several stems 

 from a simple root. Stems 1.5-2.5 dm. high, branched above, leafy below; leaves 

 linear, rough- hairy, sessile; flowers in hemispherical heads; corolla blue, seldom 

 white or pink. In waste places, R. I. and Conn. Adventive from Europe. June- 

 Sept. 



4. LOBELIA L. 



Herbs (some tropical species shrubs), with alternate or basal leaves, and race- 

 mose spicate or paniculate, often leafy -bracted, red, yellow, blue, or white flowers. 

 Calyx-tube turbinate, hemispheric or ovoid, adnate to the ovary. Corolla-tube 

 straight, oblique, or incurved, divided to the base on one side, 2 -lipped in our spe- 

 cies, the lobe on each side of the cleft erect or recurved, turned away from the other 

 3 which are somewhat united. Stamens free from the corolla-tube, monadelphous, 

 at least above, 2 or all the 5 anthers with a tuft of hairs at the tips, 3 of them usually 

 larger than the other 2. all united into a tube or ring around the style. Ovary 

 2-celled, the 2 placentae many-ovuled; stigma 2-lobed or 2-cleft. Capsule loculicid- 

 ally 2-valved. [Named after Matthias de L'Obel, 1538-1616, a Flemish botanist.] 

 About 225 species of wide geographic distribution. Besides the following, some 

 12 others occur in the southern and western U. S. 



* Aquatic; stems simple, nearly naked; flowers light blue. 



Leaves terete, hollow, obtuse, all tufted at the base. i. Z.. Dortinanna 



Leaves flat, linear-oblong or spatulate, entire or glandular-denticulate. 



2. L. paludosa. 

 * * Terrestrial plants of wet or dry soil; stems leafy. 



i. Corolla-tube 10-25 mm - long- 

 Flowers bright scarlet (rarely white); corolla-tube 20-25 mm. long. 3. Z,. cardinalis. 

 Flowers blue, white, or blue and white; corolla-tube 10-15 mm. long. 

 Leaves ovate, lanceolate, or the lower ones obovate. 

 Leaves glabrous or sparingly pubescent. 



Calyx-lobes hirsute; sinuses with large deflexed auricles. 



4. L. syphilitica. 

 Calyx-lobes glabrous or glandular, usually without auricles. 



5. L. amoena. 

 Leaves densely puberulent; calyx hirsute; auricles small. 6. L. puberula. 



Leaves elongated-linear, strongly glandular-denticulate. 7. L. glandulosa. 



2. Corolla-tube only 4-8 mm. long. 

 Stems mostly simple ; flowers in terminal spike-like racemes. 



Sinuses of the calyx without auricles. 8. L. spicata. 



Sinuses of the calyx with reflexed subulate auricles. 9. L. leptostachys. 



Steins mostly paniculately branched; flowers in loose racemes. 



Stem stout, pubescent; leaves ovate or oblong, dentate. 10. L. inflata. 



Stems slender, glabrous; stem-leaves narrow, the basal wider. 



Pedicels mostly longer than flowers, 2-bracteolate near the middle. 



ii. L. Kalmii. 

 Pedicels not longer than flowers, not bracteolate, or only so at the base. 



Corolla 5-7 mm. long ; calyx-tube hemispheric in fruit. 12. L. Nuttallii. 

 Corolla 9-1 1 mm. long; calyx-tube turbinate. 13. L. Canbyi. 



1. Lobelia Dortmanna L. WATER LOBELIA. WATER GLADIOLE, (I. F. f. 

 3500.) Perennial, aquatic, glabrous thoughout, somewhat fleshy; roots numer- 

 ous, white, fibrous ; stem slender, simple, erect, hollow, minutely scaly, 1.5-4.5 

 dm. high. Leaves all submersed, longitudinally divided by a partition. 2-5 cm. 

 long, about 4 mm. thick: flowers in a loose terminal raceme, blue. 12-16 mm. 

 long; pedicels filiform, shorter than or equalling the flowers; calyx-lobes subulate 

 or lanceolate, the sinuses usually not at all appendaged; corolla-tube 6-8 mm. 

 long, its lower lip glabrous or nearly so. Borders of ponds, N. J. and Penn. to 

 N. S., N. B., the N. W. Terr, and Br. Col. Also in Europe. July-Sept. 



2. Lobelia paludosa Nutt SWAMP LOBELIA. (I. F. f. 3501.) Perennial, 

 aquatic, glabrous throughout; roots few and thick; stem nearly naked, slender, sim- 

 ple, or branched above, 3-12 dm. high. Leaves emersed, obtuse or acutish. th<>-e 

 of the stem few, small and sessile, the basal ones 5-22 cm. long, 4-8 mm. wide, 

 narrowed into petioles; flowers pale blue, racemose. 10-12 mm. long; calyx-lobes 

 narrowly lanceolate, the sinuses commonly not at all appendaged; corolla-tube 6-8 



