LABIATE. (mIXT FAMILY.) 385 



floral ones ovate, sessile ; racemes terminal and axillary, many -flowered, viscid ; 

 calyx hairy ; lateral lobes of the corolla conspicuous. — Dry open woods in 

 the upper districts. July -Sept. — Stem l°-2° high. Leaves 2' -4' long. 

 Kacenies 3' -6' long. Corolla 6" -8" long, blue and white. 



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

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

 floral ones narrower. — Dry woods in the upper districts. August. 



2. S. saxatilis, Riddell. Smooth or nearly so ; stem ascending, slender, 

 8' - 1 2' high ; leaves 1 ' - 2' long, thin, the lower cordate-ovate, coarsely crenate, 

 obtuse, long-petioled, the floral ones oblong, entire ; racemes loose ; flowers 

 small, blue. (S. arguta, Biickl., a pubescent form.) — Mountains of North 

 Carolina. July - August. 



3. S. canescens, Nutt. Stem erect, tomentose, branching above; leaves 

 ovate or oblong-ovate, acute, smoothish, paler and puncticulate beneath, short- 

 petioled, the lower ones cordate, the upper lanceolate ; racemes axillary and 

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

 woods, Florida and Georgia. July -August. — Stem 2° -3° high. Leaves 

 2' - 3' long. 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 ; 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'-H' long. Corolla V long. 



5. S. montana, Chapm Softly pubescent; stem mostly simple (l|°-2° 

 high) ; leaves of the stem, and lowest floral ones, ovate or oblong-ovate, 

 coarsely serrate, acute at each end, the lowest cordate ; racemes few flowered; 

 corolla large (I'-l^' long), blue, the ample lower lip nearly as long as the 

 upper one. — Dry woods, and margins of fields, on the mountains of Georgia. 

 July- August. 



6. S. pilosa, Michx. Hirsute or closely pubescent ; stem simple or spar- 

 ingly branched ; leaves distant, ovate, obtuse, coarsely crenate ; the lowest 

 rounded at the base, the upper ones abruptly short-petioled ; racemes short, 

 few-flowered; corolla pale blue. — Dry soil. July- August. — Stem l°-2° 

 high. Leaves 1'- 2' long. Corolla 8"- 9" long, the tube slender. 



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

 late, acute at each end, coai-sely toothed, villous beneath, hispid above ; ra- 

 cemes paniculate, with the flowers crowded. — Georgia, between the Ocmulgee 

 and Flint Rivers (E/liott). May- July. — Stem 2° -3° higli. Leaves 3'-4|' 

 long, on petioles ^' long. 



•)- f- Upper and floral hares alike, entire, nenrit/ sessile ; the lower broader, 

 petioled, and most/ij crenate. 



8. S. brevifolia, Gray"* Pubescent ; stem mostly simple (6'- 12' high) ; 

 leaves small {h'-V long), rigid, lanceolate, obtuse, entire, tapering down- 

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

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

 many flowered. — Dry sandy soil, Geor<ria and Florida. May- June. 



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