CA MP A NULA CEAE. 887 



I. Jasione montdna L. Sheep's-bit. Annual or biennial, with several stems 

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

 inear, 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. (See Appendix.) 



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

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

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

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

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

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

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

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

 s-celled, the 2 placenta? many-ovuled; stigma 2-lobed or 2-cleft. Capsule loculicid- 

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

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

 [2 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. 1. L. Dortmanna, 



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



2. L. paludosa, 

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

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

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



stems 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. 



11. 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 9-11 mm. long; calyx-tube turbinate. 13. L. Canbyi. 



1. Lobelia Dortmanna L. Water Lobelia. Water Gladiole. (I. F. f. 

 I500.) Perennial, aquatic, glabrous thoughout, somewhat fleshy; roots numer- 

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

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

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

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

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

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

 f. 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, 

 .quatic, glabrous throughout; roots few and thick; stem nearly naked, slender, sim • 

 tie, or branched above, 3-12 dm. high. Leaves emersed, obtuse or acutish, those 

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

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



•arrow ly lanceolate, the sinuses commonly not at all appendaged - , corolla-tube 6-8 



