3*21 L.vniAT.r-. (mint family. ) 



diite, roarsoly crcnnto, lon^jc-jii-tiolcil, rouiidi-d nt the n]tox. — Swamps, Florida, 

 and iioitliwaid. July and Aug. — Coixdla 8"- 10" long, blue or white. 



M- H- H- L<avcs all linear and entire ; the lowest liract-like, 

 8. S. Floridana, n. sp. Minutely jmltusccnt ; stem slciuk-r, brancliinj: ; 

 leaves linear, ol)tu.se, entire, sessile, with revolutc miuyins ; the lowest minute 

 and braet-like, tiic floral ones shorter tiian the flowers ; racemes loo.sc, few- 

 fluwercd ; corolla large, much dilated at the throat, the nearly equal lips broad 

 and obtuse , filaments hair}' at the base. — Pine-barren swamps near the coast, 

 West Florida. July. — Stem 1° high. Leaves 1' long, ^" - 1" wide. Corolla 

 r long, deep blue, the lower lip white in the middle. 



* * Flowers small, in axillari/ racemes. 



0. S. lateriflora, L. Smooth ; stem elongated, diffusely l)ranchcd ; leaves 

 pctioled, 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 2° -3° 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-pctiolcd, ovate-lanceolate, acute, slightly 

 crenatc, rounded or suhcordate 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 l°-2° high. Leaves I'-l^' long. 

 Corolla 7"- 8" long, blue, the lower lip white in the middle, spotted with blue. 



11. S. parvula, Michx. Stem low, pubescent; leaves ovate or roundish, 

 obtuse, mostly entire, nearly sessile, strongly veined; flowers small, pcdundcd. — 

 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" long. 



21. MACBRIDEA, Ell. 



Calyx tubular-bell-shaped, 3-lobed ; the upper lobe lanceolate, entire, the two 

 lower ones oblong, notched or entire. Corolla inflated, 2-lip])ed ; the upper lip 

 arching, concave, the lower broadly 3-lobcd, spreading. Stamens 4, ascending 

 under the upper lip. Filaments hairy : anthers approximate by pairs, the cells 

 diverging, hairy within, denticulate on the margins. Nutlets smooth. — Erect 

 mostly simple perennials. Whorls crowded in a dense cone-like terminal head. 

 Corolla largo, white or purple. 



1 . M. pulchra, Ell. Smooth or hairy ; leaves lanceolate, acute, serrulate, 

 dotted ; the lower ones narrowed into a petiole, the upper sessile, the floral ones 

 ovate, acute ; whorls 4-flowered ; calyx striate, the lobes entire ; corolla purple, 

 the tube striped with purple and white, the upper lip entire. — Pine-barren 

 swamps, Georgia to North Carolina. Aug. and Sc])t. — Stem 1°-I|° high. 

 Corolla 1^' long. 



