LACiAT^. (mint family.) 323 



onoi, ovate, sessile ; racemes terminal and axillary, manv-flowered, viscid ; calyx 

 luiiry ; lateral lobes of tlic corolla conspicuous. (S. cordifolia, ihihl.) — Dry 

 open woods in the upper districts. July -Sept. — Stem 2° -5° high. Leaves 

 2'- 4' long. Racemes .3' - C long. Corolla 6"- 8" long, blue and white. 



Var. minor. Small (6'- 12') ; leaves tomentose, finely crenate ; the lowest 

 ones orbicular, the upper ovate-lanceolate, truncated at the base (3^'- 1' long), 

 the floral ones narrower. (S. saxatilis (i 1 pilosior, Benth. !) — Dry woods, near 

 Washington, Wilkes County, Georgia. August. 



2. S. arguta, Buckley. Stem somewhat procumbent, pubescent ; leaves 

 ovate, cordate, coarsely crenate, on long pubescent petioles, nearly smooth ; 

 racemes axillary and terminal; flowers small. — Black Mountain, North Caro- 

 lina, Buckley. July and Aug. — Stem 8' - 12' long. Leaves 1 ^' - 2' long, paler 

 beneath, sliorter than the petioles. 



3. S. canescens, Nutt., var. ? punctata. Stem erect, tomentose, branched 

 above ; leaves ovate or oblong-ovatc, acute, smootliish, paler and strongly veined 

 beneath, resinous-dotted on l)oth sides, short-petioled, the lower ones cordate, 

 the upper and floral ones lanceolate, tapering at the base ; racemes simple, axil- 

 lary and terminal, pubescent, many-flowered; corolla blue and white. — Dry 

 open woods, Florida and Georgia. July and Aug. — Stem 2° high. Leaves 

 l|-'-2' long, 2-3 times as long as the ])ubescent petioles. Corolla 8"-9" long. 



4. S. serrata, Andr. Smooth ; stem erect, branched ; leaves ovate, acute, 

 smooth and green on both sides, decurrent into the margined petiole , tlie floral 

 ones small, lanceolate ; racemes short, simple, few-flowered, 1-sided ; calyx 

 mostly hairy ; corolla large, blue. — Dry woods, North Carolina. — Stem 2° - 3° 

 high. Leaves I'-l^' long. Corolla 1' long. 



.'). S. pilosa, Michx. Hairy; stem simple or sparingly branched ; leaves 

 distant, ovate, obtuse, coarsely crenate ; the lowest rounded at the base, the 

 upper ones abruptly short-petioled, the floral ones spatulatc, obtuse ; racemes 

 short, few-flowered ; corolla pale blue. — Dry sandy soil, Florida to Mississippi, 

 and northward. July and Aug. — Stem 1° - 2° high. Leaves 1'- 2' long. Co- 

 rolla 8" -9" long. 



6 S. villosa, Ell. Stem erect, branching, villous ; leaves large, lanceo- 

 late, acute at each end, coarsely toothed, villous beneath, hispid above ; racemes 

 ])anieulate, with tiic flowers crowded. — Georgia, between the Ocmulgee and 

 Flint Kivers, Elliott. May - July. — Stem 2° -3° high. Leaves 3' -4^' long, 

 on petioles ^' long. ( * ) 



M- H- Upper and floral leaves alike, entire, nearhj sessile; the lower broader, 

 petioled, and mostly crenate. 

 7. S. integrifolia, L. Pubescent throughout; stem mostly simple (C- 

 12' high) ; leaves small (^'-1' long), lanceolate, obtuse, entire, tapering down- 

 ward, sessile ; the lowest ovate or obovate, sliort-petioled, crenate or entire, the 

 lower floral ones sometimes longer than the flowers ; racemes leafy, few - manA'^- 

 flowered. — Dry sandy soil, Florida to North Carolina, and westward. 



Var. major. Stem taller (I°-2° high), branching; leaves larger (l'-2' 

 long) ; the upper oblong, entire, tapering into a uctiole, the lower ovate or cor- 



