Order 89.— LABIATJE. 553 



I Flowers largo (7 to 13" long), racomed 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, acute at base. Leaves notched, petiolate. (b) 



b Galea of the corolla longer than the lower p Nos. 8, 4 



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



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



S Blowers 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. versicolor Nutt. Erect, branching, glandular-hirsute; lvs. petiolate, broadly 

 ovate, cronate, cordate, pubescent, veiny, thejloral sessile, broad-ovate, not cordate, 

 entire, as long as tho calyx; rac. simple or branched, long, many-flowered; fls. 

 opposite; cal. hirsute; cor. lower lip scarcely longer than the upper. — Prairie3 and 

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

 2 to 4' by IS" to 3', petioles nearly as long. Rac 3 to G' long. Ped. shorter 

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

 lips. Jl. (3. cordifolia Muhl.) 



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

 cordate-ovate, coarsely crenate, upper oval, obtuse, lloral 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 &. 

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

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



/?. crassifolia. Lvs. mostly ovate, of firmer texture. — New Orleans (Hale). 

 Cal. more enlarged in fruit. 



3 S. canescens Nutt St erect, tall, pubescent; lvs. 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- 

 ually 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 ; lvs. 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 

 gender, expanding only at the throat, galea large, inflated, strongly incurved, many 

 times longer Can the Up. — Ga. (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; lvs. petiolate, ovate, 

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

 11a. 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, tho lip as long or a little longer than tho galea JL 



6 S. pildsa Mx. St erect, mostly simple, hirsute-pubescent ; lvs. 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 & to 18''', more or less acuto at base and obtuso at apex; narrowed to 

 the petiole. Rae. 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 ; lvs. ovate-lanceo- 

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

 lower ovate; rac loose, leafy; bracts lanceolate, lis. large. — H Mid. and S. States, 

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

 (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, sloloniferons ; lvs. broad-ovate, stb- 

 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 



