ERICACEAE. 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. Kalmii,\sir. Bart. EU. 



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

 Stem. 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. Nuttall's 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. %. Stem 12 

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

 from 6 30 in a 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. Tj.. 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 Linn. : 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. Tj.. Stem 2 3 feet 

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

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



Blue Cardinal Flower. 



8. L. inflata 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 1218 

 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. 7J.. Stem 2 3 

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

 from 810 inches long. One of the most splendid plants in the Northern 

 States. Cardinal Flower. 



ORDER LXXIL ERICACEJE. HEATHWORTS. 



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

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



