ERICACE^. 213 



filiform branches ; leaves remotely denticulate ; radical oblong-spatulate ; 

 cauline oblong-linear; racemes virgate; pedicels shorter than the flower, 

 with minute bracteoles near the base ; capsule obtuse below. L. gracilis 

 Nutt. L. KabniiyWax. Bart. Ell. 



Sandy swamps and near salt marshes. N. Y. to Car. Aug., Sept. (2). — 

 Ste?/! 1 — 2 feet high, filiform, erect or flexuous. Flowers in a slender raceme, 

 pale-blue, smaller than in the preceding; the bracteoles near the base of the 

 pedicels and often colored. Nuttairs Lobelia'. 



5. L. spicata Lam. : stem erect, simple,pubescent ; leaves pubescent, ob- 

 tuse, nearly entire; radical spatulate; cauline oblong; raceme virgate, 

 naked ; segments of the calyx subulate, nearly as long as the tube of the 

 corolla. L. Claytoniana Mich. L. pallida Muhl. 



Fields. Can. to Car. N. to Lake Winnipeg. July, Aug. Q\..—Stem 1—2 

 feet high, generally simple. Flowers pale-blue, as large as those of L. Kalmii, 

 from 6 — 30 inti spike-like raceme. Spiked Lobelia. 



6. L. puberula Mich. : pubescent ; stem erect, simple ; leaves oblong- 

 ovate, obtuse, repand-serrulate ; flowers nearly sessile, in a 1-sided spike ; 

 calyx hirsute at base, the lanceolate ciliate segments as long as the tube of 

 the corolla. 



Moist low grounds. Penn. to Geor. Sept. %. — Stem 2 feet high. Lower 

 leaves obovate ; upper lanceolate. Flowers rather large, in a secund spike or 

 raceme, nearly sessile, bright blue. Allied to the next, but smaller in all its 

 parts. Pubescent Lobelia. 



7. L. syphilitica Lin7i. : stem erect, somewhat hairy ; leaves closely ses- 

 sile, ovate-lanceolate, unequally serrate, with scattered hairs on the upper 

 surface ; raceme leafy, with the flowers on short pedicels ; calyx hispidly- 

 ciliate, with the' auricles reflexed and 2-cleft. 



Bogs and low wet grounds. Can. to Car. Aug., Sept. '2J.. — Stem 2 — 3 feet 

 high, simple, hairy on the margin. Flowers on short pedicels, in a long leafy 

 raceme, large, blue. This plant was formerly supposed to be medicinal. 



Blue Cardinal Flower. 



8. L. injiata Linn. : stem erect, hairy, branched ; leaves ovate-lanceo- 

 late, sessile, crenate-dentate, hairy ; racemes leafy, somewhat paniculate ; 

 capsule ovoid, inflated. 



Fields and woods. Can. to Car. W. to Miss. July— Sept. ^.—Stem 12—18 

 inches high. Flowers numerous, small, pale-blue, in leafy spikes or racemes. 

 Plant acrid and powerfully medicinal. Big. Med. Bot. i. 177. 



Indian Tobacco. 



9. L. cardinalis Linn. : stem erect, simple, pubescent ; leaves oblong- 

 lanceolate, acute at each end, unequally dentate-serrate, minutely pubes- 

 cent ; raceme somewhat secund and leafy below ; stamens longer than the 

 corolla. 



Low wet grounds. Can. to Car. W. to Ohio. July, Aug, %.—SUm' 2—3 

 feet high. Flowers very large, bright scarlet, in a terminal raceme which is 

 from §—10 inches long. One of the most splendid plants in the Northern 

 States. Cardinal Flower. 



Order LXXII.— ERICACE^.— Heathworts. 



Calyx 4 or 5 -cleft, nearly equal, persistent. Corolla 4 or 5- 

 cleft, regular or irregular. Stamens definite, equal in number' 



