324 LABIATJE. (MINT FAMILY.) 
date, coarsely crenate, long-petioled, rounded at the apex. — Swamps, Florida, 
and northward. July and Aug. — Corolla 8''— 10" long, blue or white. 
+ + + Leaves all linear and entire; the lowest bract-like. 
8. S. Floridana, n.sp. Minutely pubescent; stem slender, branching; 
leaves linear, obtuse, entire, sessile, with revolute margins; the lowest minute 
and bract-like, the floral ones shorter than the flowers ; racemes loose, few- 
flowered ; corolla large, much dilated at the throat, the nearly equal lips broad 
and obtuse ; filaments hairy at the base.— Pine-barren swamps near the coast, 
West Florida. July.— Stem 1° high. Leaves 1/ long, j"-1" wide. Corolla 
1’ long, deep blue, the lower lip white in the middle. 
* * Flowers small, in axillary racemes. 
9. S. lateriflora, L. Smooth; stem elongated, diffusely branched ; leaves 
petioled, ovate-lanceolate, coarsely serrate, acuminate, the lower rounded at the 
base; racemes slender, 1-sided ; corolla blue. — Shady swamps, Florida to Mis- 
sissippi, and northward. July - Sept. — Stem 20-390 high. Leaves membra- 
naceous, 2'-3'long. Corolla 2” long. 
* * * Flowers solitary, in the axils of the upper leaves. 
10. S. galericulata, L. Stem erect or ascending, simple or branched, 
smooth or pubescent; leaves short-petioled, ovate-lanceolate, acute, slightly 
erenate, rounded or subcordate at the base, paler and pubescent beneath; 
flowers nearly sessile, turned to one side. — Wet shaded places, North Carolina, 
and northward. July and Aug.— Stem 19-929 high. Leaves 1'-1j' long. 
Corolla 7" - 8" Jong, blue, the lower lip white in the middle, spotted with blue. 
li. S. parvula, Michx. Stem low, pubescent; leaves ovate or roundish, 
obtuse, mostly entire, nearly sessile, strongly veined ; flowers small, peduncled.— 
Rocky woods, West Florida to Mississippi, and northward. July and Aug.— 
Fibres of the root often bearing small tubers. Stem 6/-9'high. Leaves 4"- 6" 
long. Corolla blue, 2" — 3" Jong. 
2L MACBRIDEA, El. 
Calyx tubular-bell-shaped, 3-lobed ; the upper lobe lanceolate, entire, the two 
lower ones oblong, notched or entire. Corolla inflated, 2-lipped ; the upper lip 
arching, concave, the lower broadly 3-lobed, spreading. Stamens 4, 
under the upper lip. Filaments hairy: anthers approximate by pairs, the - 
diverging, hairy within, denticulate on the margins. Nutlets smooth. — 
> mostly simple perennials. Whorls crowded in a dense cone-like terminal head. 
Corolla large, white or purple. 
-1. M. pulchra, Ell. Smooth or hairy ; leaves lanceolate, acute, serrulate, 
dotted ; the lower ones narrowed into imc the upper sessile, the floral ones 
ovate, acute; whorls 4-flowered ; calyx striate, the lobes entire; corolla purple, — : 
amps, Georgia to North Carolina. Aug. and Sept.— Stem 19-14? high- 
