ORDES 89. LABIATES. 553 



Flowers large (7 to 13'' Ions:), racemed at top of the stem, with bracts, (a) 



a Bracts "ovate, abrupt at base. Lips of the corolla short Nos. 1, 2 



a Bracts lance-oblong, acuta at base. Leaves notched, petiolate. (b) 



b Galea of the corolla longer than the lower p Nos. 3, 4 



b Galea of the corolla not longer than the lip Nos. 5. 6 



a Bracts leaf-like, longer than the calyx. Leaves entire, sttbsessile No. 7 



Flowers large, or small, opposite, solitary, in the axils of the leaves Nos. 8 10 



Flowers small (3" long), in slender, axillary, one-sided racemes No. 11 



1 S. versfcolor Nutt. Erect, branching, glandular-hirsute ; Ivs. petiolate, broadly 

 ovate, crenate, cordate, pubescent, veiny, the floral sessile, l>road-ovate, not cordate, 

 entire, as long as the calyx; rac. simple or branched, long, man}'-- flowered ; fls. 

 opposite ; cal. hirsute ; cor. lower lip scarcely longer than the upper. Prairies and 

 open woods, Ohio to Mo. and La. St. 18' to 3 to 4f high. Lvs. very veiny, thin, 

 2 to 4' by 18" to 3', petioles nearly as long. Rac. 3 to 6' long. Fed. shorter 

 than calyx. Cor. 6 to 1" long, blue above, lateral lobes little shorter than the 

 lips. Jl. (S. cordifolia Mulil.) 



2 S. saxatilis RiddelL Weak, branched, ascending, pubescent; Ivg. petiolate, 

 cordate-ovate, coarsely crenate, upper oval, obtuse, floral ovate, short-petiolate, 

 entire ; rac. loose, elongated ; cor. lower lip twice longer than the upper. Rocky 

 banks, S. Ohio to Va. and Tenn., along the Mts. Plant 1 to 2f long, rac. 5 to 8'. 

 Lvs. usually thin and rugous, 1' to 18 7 long, scarcely longer than the petioles. 

 Cor. 8" long, blue, tube pale. JJ. Aug. (S. rugosa, 2d Ed.) 



13. CRASSIFOLIA. Lvs. mostly ovate, of firmer texture. New Orleans (Hale). 

 CaL more enlarged in fruit. 



3 S. canescens Nutt St. erect, tall, pubescent; Ivs. petiolate, oblong-ovate or 

 ovate, rounded or attenuate at base, minutely pubescent both sides, paler beneath, 

 margin crenate, apex acute, the lower cordate ; rac. terminal and axillary, pedun- 

 culate, paniculate, bracts lance-linear; fls. canescent; upper lip the longer, tube grad- 

 VMlly enlarged. Dry grounds, Mid. and W. States, abundant. St. usually purple, 

 1 to 3f high. Lvs. 2 to 3' long, 1 to 2' wide, often with a purple margin and pur- 

 plish spots. Cor. 10'' long, tube white, lips blue, lateral lobes very short. Jn., Jl. 



4 S. villosa Ell. ? St. villous-pubescent, slender, branching ; Ivs. lanceolate or 

 lance-ovate, acute at each end, sparingly hispid above, the petioles and veins 

 beneath villous, deeply serrate; rac. paniculate, loose; cal. hispid; cor. tube 

 slender, expanding only at the throat, gaka large, inflated, strongly incurved, many 

 times longer than the lip. G-a. (Feay). Apparently 2 to 3f high. Lvs. 1 to 2' 

 long. We have but a single specimen. 



5 S. serrata Andr. Erect, subsimple, nearly glabrous; Ivs. petiolate, ovate, 

 acuminate, crenate-serrate, cuneate at base, the floral lance-oblong; rac. subsimple, 

 fls. large, pubescent (not hoary) lips of equal length. "Woods, 111. and S. States. 

 St. 2 to 3f high. Lvs. green both sides, or often purplish. Rac. few-flowered. 

 Cor. more than 1' in length, the lip as long or a little longer than the galea. JL 



6 S. pilosa MX. St. erect, mostly simple, hirsute-pubescent ; Ivs. pubescent, 

 rhomboid-ovate or oval, obtuse, crenate-serrate, petiolate, in remote pairs; rac. 

 terminal, rather short, bracts elliptic-ovate ; lips of the cor. large, the lower a little 

 longer. Open woodlands, Penn. to Ga. St. 1 to 2f high, purplish. Lvs. few, 1 

 to 2' by 8 to 18", more or less acute at base and obtuse at apex; narrowed to 



the petiole. Rac. generally simple and few-flowered, with opposite, elliptical 

 bracts. Pedicels and cal. hairy. Cor. tube nearly white below, blue at the sum- 

 mit, 9" long, the later fls. shorter. Jn. Aug. (S. ovalifolia Bart.) 



7 S. integrifolia L. Erect, nearly simple, densely pubescent ; Ivs. ovate-lanceo- 

 late, and linear-lanceolate, tapering to the base, subacute, entire, subsessile, the 

 lower ovate; rac. loose, leafy; bracts lanceolate, fls. large. 1 Mid. andS. States, 

 dry soils. St. 9' to 2f high, with large blue fls. in terminal racemes. The Ivs. 

 (1 to 2' long), vary in breadth and margin, the lowest being sometimes ovate and 

 crenate. Cor. blue and white, slender at base, enlarged above, 8 to 9" long. 

 Jn., JL (S. hyssopifolia Pers. S. Caroliniana Ph.) The plant is intensely bitter. 



8 S. nervosa Ph. Slender, erect, subsimple, stoloniferous ; Ivs. broad-ovate* sub- 

 cordate, crenate-serrate, sessile, glabrous, 3 5-veined, lower roundish-ovate, 

 upper ovate and lance-ovate, slightly petioled; fls. axillary, solitary. Rocky 

 shades, along streams, Penn. to 111. and La. Roots creeping, often sending out 

 long, filiform stolons. Stem 8 15' high, weak. Leaves 2 15" by 5 12", the 



