6 LOBELIACE^. Lobelia. 



shorter than the calyx-lobes : larger antliers slightly liirsute on the back, but naked at tip. 



Prodr. vii. 370. — Moist grounds, W. Louisiana, Arkansas, and E. Texas: flowering 



early. Tube of the bluish corolla 2 to 2\ lines long. Calyx-appendages, as in all tliese 



species, very variable. 



=.- = Flowers or at least the fniit-bearing pedicels ascending, mostly very luinieroiis and hardly 

 seciMid in the elongated and virgatc spike-like raceme: tube of the corolhi barely 2 lines long: 

 upper leaves passing into bracts in the stronger plants : calyx-lobes loose and spreading in flower. 



L. leptostachys, A. DC. Calyx-tube short-turbinate and in fruit becoming hemi- 

 spherical, the sinuses eacli with a pair of subulate or linear strictly deflexed appendages, 

 which mostly soon equal or even exceed the tube; otherwise as the next. — Prodr. vii. 376. 

 — Sandy dry soil, Oliio to Illinois and Missouri, and Virginia to Georgia : fl. early summer. 



L. spicata, Lam. Pubemlent: stem virgate, 1 to 4 feet high (from a biennial? root) : 

 leaves pale, barely denticulate, obtuse; the radical and lowest obovate, 1 to 4 inches long; 

 the upper spatulate, gradually smaller, and at length linear-oblong or lanceolate and bract- 

 like : spike-like raceme from 3 to 18 inches long : tube of the calyx turbinate ; the lobes 

 subulate or linear-subulate and shorter than the tube of the (light blue, pale, or rarely 

 white) corolla; the sinuses not appendaged. — Diet. iii. 587. L. Clai/toniana, Michx. Fl. ii. 

 153. L. pallida, Muhl. Cat., Ell., &c. L. goodenioicles, Willd. Hort. Berol. t. 30. L. nivea, 

 Raf. Ann. Nat. 1820, 15, white-flowered form. — Gravelly or sandy and mostly dry soil, N. 

 New England to Saskatchewan, Louisiana and Arkansas : fl. through summer. 



Var. parviflora, a small form, with calyx-lobes broadly subulate, and pale corolla 

 only 3 lines long. — L. jjullida, Muhl.? — Swamps, Lancaster, Penn., Porter: fl. June. 



Var. hirtella, a western form, with somewliat scabrous pubescence, and nunutely 

 hirsutely ciliate bracts and calyx-lobes, the latter subulate-linear and fully as long as the 

 tube of the corolla. — Chiefly towards and beyond the Mississippi. 



++++++ Stem very leafy, simple and strict, continued into a very leafv-bractcd spike: leaves 



and bracts laciniate-toothed : lips of the corolla of nearly similar lobes, smooth and naked: seeds 



with a very smooth and even coat. 

 L. fenestralis, Cav. Annual or at most biennial, 2 or 3 feet high, nearly glabrous, or the 

 sharp decnrrent angles of the stem hairy : leaves oblong or lanceolate, all the upper partly 

 clasping and acuminate, passing into the similar bracts of the long spicate inflorescence, 

 these mostly exceeding the crowded flowers : calyx-tube obovate ; the lobes linear and 

 mostly with some slender teeth : tube of the corolla 2 lines long, surpassing the stamens 

 and style: larger anthers short-bearded at tip. — Ic. vi. 8, t. 512 ; Lindl. Bot. Reg. xxiv. 

 t. 47. L. pectimtta, i:ngelm. in Wisliz. Rep. 108. — S. W. Texas to Arizona and Mexico. 

 H^ ^-(. ++ ++ Stems leafy, often paniculately branched : flowers loosely racemose: sinuses of the 



calyx not appendaged:' mainly biennials or annuals. 



== Caulinc leaves chiefly linear, entire or merely denticulate: capsule not inflated. 

 a. Tube of the corolla fully 3 lines long: perennial from filiform rootstocks. 

 Li. gruina, Cav. Pubemlent or glabrous : stems nearly simple, slender, a foot or two 

 high: leaves all lanceolate or linear, acute, denticulate, an inch or two long: raceme 

 mostly slender-peduncled and few-flowered : calyx-lobes slender-subulate, shorter than the 

 tube of the corolla. — Arizona, in the Sierra Blanca, at 7000 feet, Rollimck: Flowers smaller 

 than in Mexican specimens ; the tube of corolla only 3 lines long. (Mex.). 

 b. Tube of the briijht blue (rarelv varving to white) corolla not over 2 lines long; the two sui)erior 



lobes small and narrow: plants mainly glal)rous, slender and erect: inflorescence disposed to 



become paniculate. 

 L. Boykini, Torr. & Gray. Perennial: stem a foot or two high from a creeping root- 

 stock, fistulous, mostly simple : leaves all small and scattered, filiform or nearly so, an inch 

 or less long and above reduced to setaceous bracts : filiform pedicels rather longer than the 

 flower, spreading: calyx-lobes setaceous-subulate, spreading, very much longer than the 

 short tube, which in fruit is rounded at base : mature capsule half superior : seeds short- 

 oval, rough-rugose. — A. DC. Prodr. vii. 374; Chapm. Fl. 255. — Pine-barren swamps in 

 shallow water, S. Carolina, Georgia, and Florida, beginning to flower in May. 

 L. Canbyi, Gray. Perennial from offsets ? or annual, 2 feet high, the larger plants pani- 

 culately branched above, obscurely puberulent, scabrous or nearly smooth : leaves linear, 

 remotely denticulate-glandular, an inch or two long, a line or two wide : racemes elongated, 

 often leafy at base : pedicels naked, erect or ascending, shorter than the bracts or the 

 flower: calyx-lobes subulate-linear, denticulate-glandular, hardly longer than the wholly 



