LABIATE. (mint FAMILY.) 381 



* Upper Up of the calyx ovate, entire or 3-tonthed : lower anther cell wanting. 



1. S. azurea, Lam. Smooth; stem simple or brauched; leaves lanceo- 

 late or linear, obtuse, entire, or the lower ones serrate, tapering at the base ; 

 racemes elongated; whorls nearly sessile, 6- 12-flowered; calyx longer than 

 the pedicel, the teeth ovate, acute ; corolla 2-3 times as long as the calyx, 

 white or blue ; style bearded. — Dry light or sandy soil, Florida to South 

 Carolina, and westward. July-August. — Stem 2° -4° high. Leaves \^'-3' 

 long. Corolla 6" - 8" long. 



2. S. urticifolia, L. Stem (I°- 2°) mostly simple, villous-pubesceut and 

 somewhat viscid ; leaves thin, rhombic-ovate, acute, serrate, abruptly con- 

 tracted into a winged petiole, the upper surface and veins beneath sparse- 

 hairy; racemes terminal; bracts ovate, acuminate, caducous; wliorls 6-12- 

 flowered. remote ; calyx bell-shaped, longer than tlie pedicel, broadly 3-toothed, 

 about half as long as the blue and white corolla; style bearded. — Eich soil 

 in the upper districts. April -May. 



3. S. Chapmani, Gray. Tomentose; stem tall, branching; leaves thick, 

 ovate or ovate-lanceolate, contracted into a broadly winged petiole ; racemes 

 axillary and terminal, the cordate bracts deciduous; whorls 2 - 6-flowered. — 

 Dry soil, Middle Florida. May - June. — Stem 3° - 5° high. Corolla pale blue. 



4. S. COecinea, L. Pubescent; stem branching, l°-2° high; leaves 

 slender-petioled, cordate-ovate, acute, T- 2' long; racemes loose, many-flow- 

 ered ; calyx teeth ovate, acute ; corolla scarlet. — Waste ground, escaped from 

 cultivation. July - Sept. 



5. S. serotina, L. Stem tomentose, branching; leaves ovate, mostly 

 acute, crenate-serrate, tomentose, cordate or truncate at the base, petioled ; 

 racemes short, many-flowered ; whorls mostly 6-flowered, the upper much 

 crowded ; calyx glandular, longer thau the pedicel ; corolla small, twice as 



. long as the calyx ; style beardle.ss ; the lower lobe spatulate, acute, the upper 

 short, subulate, reflexed. — South Florida. Nov. — Stem 1° high. Leaves V 

 long, twice as long as the petiole. Corolla blue and white, 3" -4" long. 



6. S. Blodgettii, Chapm. Stem much branched ; branches erect, fili- 

 form, pubescent ; leaves small, thin, oval or ovate, slightly creuate, rounded 

 at the apex, acute at the base, about as long as the very slender petiole ; ra- 

 cemes filiform, few-flowered; whorls distant, 2 -6-flowered; calyx somewhat 

 glandular, acutely toothed, slightly inflated in fruit ; corcdla very small ; lower 

 lobe of the style spatulate, obtuse. — South Florida. — Stem 6'- 12' high. 

 Leaves 6" - 9" long. Flowers blue. 



7. S. laneeolata, Willd. Stemlow(6'-12'high), smooth, the branches 

 pubescent; leaves lanceolate-linear, obtuse, obscurely serrate (1|'- 2' long), 

 narrowed to a petiole, the floral ones subulate ; whorls distant, mostly 2-flow- 

 ered; corolla blue, scarcely longer than the smooth calyx. — East Florida 

 (Gray), and far west. 



8. S. OCCidentalis, Swartz. Stem long (2° -6°), creeping, retrorsely 

 pubescent, the internodes swollen ; leaves short-petioled, ovate, acute, serrate ; 

 racemes spike-like, many-flowered; whorls distant, mostly 6-flowered, as long 

 as the ovate acuminate bracts ; calyx glandular-villous, half as long as the 



