Meadows, marshy places, seepage areas and stream banks in s. N.M. (Socorro 

 and Grant cos.) and Ariz. (Apache, Coconino, Navajo and Pima cos.), s. to 

 Dgo., July-Oct. 



3. Lobelia appendiculata A. DC. 



Annual or biennial; stem erect, to 9 dm. high, simple or with few upright 

 axillary branches, glabrous except for sparse chaffy basal hairs; cauline leaves 

 very thin, sessile or with broad to clasping bases, oblong to ovate, obtuse to 

 acute at apex, essentially glabrous, to 8 cm. long and 3 cm. wide; raceme 1 -sided, 

 to 3 dm. long; pedicels 4-8 mm. long, puberulent, with a pair of bracteoles near 

 base; bracts linear to narrowly lanceolate, callous-denticulate, exceeding the pedi- 

 cels; flowers 1-1.5 cm. long; calyx long-campanulate in fruit, subinflated, its 

 linear-lanceolate lobes bristly-ciliate, its conspicuous flat lanceolate auricles 1-3 

 mm. long, the auricles drying blue or purplish; corolla lilac or violet, pubescent 

 at base of lip inside, the tube 4-5 mm. long; filament tube 2-4 mm. long; anther 

 tube 2-2.5 mm. long, bluish-gray; capsule partially exserted, horizontal or nod- 

 ding. 



In sandy open ground, often in moist places, in prairies, pinelands and old 

 fields in e. Tex. and e. Okla., Apr.-June; from Ala. to Tex., Ark., Okla., Mo. and 

 111. 



4. Lobelia fenestralis Cav. Leafy lobelia. Fig. 735. 



Annual or biennial from a taproot, to 14 dm. high; stems erect, leafy, simple 

 or with several ascending branches, glabrous or sparsely pubescent on the angles; 

 leaves sessile or somewhat clasping at base, lanceolate to oblong or oblanceolate, 

 acute at apex, coarsely and sharply serrate, glabrous or somewhat pubescent, to 

 7 cm. long and 12 mm. wide; inflorescence spicate, about 25 cm. long; pedicels 

 to about 5 mm. long, mostly concealed by the lanceolate bracts; flowers 12-14 

 mm. long; calyx lobes lanceolate to linear-subulate, often toothed, ciliate or 

 smooth, 2.5-6.5 mm. long; corolla blue with a white eye, the tube 5-6 mm. long 

 and long- fenestrate; filament tube 1.5-2.3 mm. long; anther tube 1.5-2 mm. long, 

 dark-bluish-gray or blackish; capsules 3-8 mm. long. 



Meadows and swales in w. Tex. to Ariz. (Coconino, Cochise and Santa Cruz 

 COS.), southw. to Oax., Aug.-Nov. 



5. Lobelia floridana Chapm. 



Stem erect, to 15 dm. high, simple or with several stout upright or spreading 

 branches, glabrous; basal leaves oblanceolate to lanceolate, acute to obtuse at 

 apex, tapered into a margined petiole, to 4 dm. long and 25 mm. wide, usually 

 much smaller, entire to crenate or dentate with callose teeth; cauline leaves much 

 smaller and narrower; raceme to 5 dm. long, loosely or densely flowered; pedicels 

 stout, 3-6 mm. long in fruit, rough, with a pair of minute bracteoles at base; 

 bracts linear, glabrous, shorter than the pedicels; flowers 1.3-2 cm. long; calyx 

 lobes broadly lanceolate to deltoid, 2-6 mm. long, acute, glabrous, the triangular 

 auricles very small; corolla pale-purplish to nearly white, pubescent without, the 

 lower lip densely hirsute at base within, the tube 8-9 mm. long; filament tube 

 6-11 mm. long, strongly deflexed; anther tube about 3 mm. long, light-bluish- 

 gray; capsule 5-7 mm. long. 



In wettish savannahs in s.e. Tex., Apr.-Aug.; from N.C. to Fla., w. to Tex. 



6. Lobelia flaccidifolia Small. Fig. 736. 



Annual to about 1 m. high; stems erect, simple or with few ascending branches; 

 leaves essentially sessile or the lower ones short-petiolate, thin, lanceolate to 

 oblong or oblanceolate, to 11 cm. long and 15 mm. wide, often rather abruptly 

 narrowed at base, rounded to acute at apex, the margins subentire to incon- 



1579 



