LABIATE. (mint FAMILY.) 319 



notched, the lower spreading, 3-lobcd, with tlic middle lobe larger, entire or 

 notched. Stamens 2, short : anther-cells linear, widely separated by the elon- 

 gated oblique connective ; the upper one fertile, the lower inipeif'eet or wanting. 



— Cymes m spikes, racemes, or panicles. 



* Upper Up of the cali/x entire : lower anther-cell wanting. 



1. S. azurea, Lam. Smooth ; stem simple or branched ; leaves lanceolate 

 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 west- 

 ward. July and Aug. — Stem 2° - 4° high. Leaves 1 ^' - 3' long. Corolla 6" 



- 8" long. 



2. S. urticifolia, L. Stem (l°-2°) mostly simple, villous-pubeseent and 

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

 into a winged petiole, the upper surface and veins beneath sparse-hairy ; racemes 

 terminal; bracts ovate, acuminate, caducous; whorls 6- I2-(lowered, remote; 

 caly.x bell-shaped, longer than the pedicel, broadly 3-toothed, about half as long 

 as the blue and white corolla ; style bearded. 



Var. major. Leaves rigid, narrower, acimiinate, crcnate, with longer and 

 broader-winged petioles; tlic lower surface, like the taller (4° - C°) branching 

 stem, hoary-tomentose ; racemes axillary and terminal; flowers smaller. — Dry 

 soil in the upper districts of Georgia, and northward : the variety in Middle 

 Florida. July - Sept. — Leaves 2' -4' long. Corolla 4" - 5" long. 



3. S. serotina, L. Stem tomcntose, branching ; leaves ovate, mostly 

 acute, crcnate-serratc, tomcntose, paler beneath, cordate or truncate at the base, 

 petioled ; racemes many-flowered ; wiiorls mostly 6-flowered, the lower ones 

 rather distant, the upper much crowded ; calyx glandular, longer than the pedi- 

 cel, acutely toothed, the upper lip puri)lc ; corolla small, twice as long as the 

 calyx ; style beardless ; the lower lobe spatulate, acute, the upper short, subulate, 

 reflexed. — South Florida. Nov. — Stem rigid, 1° high. Leaves 1' long, twice 

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



4. S. Blodgettii, n. sp. Stem much branched, shrubby at the base; 

 branches erect, lilit'orni, pubescent; leaves small, thin, oval or ovate, slightly 

 crenate, rounded at the apex, acute at the base, about as long as the very slen- 

 der petiole ; racemes filiform, few-flowered ; whorls distant, 2 - 6-flowered ; calyx 

 somewhat glandular, acutely toothed, slightly inflated in fruit ; corolla very 

 small ; lower lobe of tlic style spatulate obtuse. — South Florida. — Stem 6' - 

 12' high. Leaves 6''-9" long. Flowers blue, smaller than in No. 3. 



* * Upper Up of the calijx broad, 3-toothed: lower anther-cell pollen-hearing, but sterile. 



5. S. lyrata, L. Hairy ; stem erect, sparingly branched ; leaves chiefly 

 radical, spreading, lyrate-pinnatifid, mostly discolored ; stem-leaves 2 or 4, 

 smaller; the upper pair lanceolate and entire; raceme many-flowered; whorls 

 6-flowered, distant in fruit, longer than the ovate-lanceolate bracts ; upper lip of 

 the bell-shaped caly.\ truncate, with short erect teeth ; corolla-tube elongated, 



