LABIATE. (MINT FAMILY.) 323 



onci; ovate, sessile ; racemes terminal and axillary, many-flowered, viscid ; calyx 

 hairy; lateral lobes of the corolla conspicuous. (S. cordifolia, Muhl.) Dry 

 open woods in the upper districts. July -Sept. Stem 2 -3 high. Leaves 

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



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

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

 the floral ones narrower. (S. saxatilis j3? pilosior, Benlh.i) 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 l'- 2' long, paler 

 beneath, shorter than the petioles. 



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

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

 beneath, resinous-dotted on both 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 

 H'-2' long, 2-3 times as long as the pubescent petioles. Corolla 8" -9" long. 



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

 smooth and green on both sides, dccurrcnt into the margined petiole , the 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'-lJ' long. Corolla 1' long. 



5.. S. pilosa, Miehx. 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 spatulate, 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 

 paniculate, with the flowers crowded. Georgia, between the Ocmulgee and 

 Flint Rivers, Elliott. May - July. Stem 2 -3 high. Leaves 3'-4' long, 

 on petioles ^' long. ( * ) 



H_ j_ Upper and floral leaves alike, entire, nearly sessile ; the lower broader, 



petioled, and mostly crenate. 



7. S. integrifolia, L. Pubescent throughout; stem mostly simple (6'- 

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

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

 lower floral ones sometimes longer than the flowers ; racemes leafy, few - many- 

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



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

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



