424 XCIII. LABIATE. NKPKTA. 



6. S. RUG6SA. Wood. (Nov. sp.) 



Si. decumbent at base, diffusely branched, pubescent ; Ivs. oval, and ovate, 

 rugose, pubescent, petiolate, obtuse at each end, subcordate, crenate-serrate ; 

 roc. simple, elongated, terminal on the stem and branches; bracts broad-ovak-, 

 petiolate, subcordate, as long as the calyx. At Harper's Ferry, on the rocky 

 shores of the Shenandoah ! A rough, diffuse plant, about If high. Stem with 

 the angles obtuse and the sides grooved. Leaves rather numerous, 12 18" l>y 

 9 13", scarcely longer than the petioles, the bracts 2 3" diam. Racemes &-- 

 8' long, rather dense-flowered. Corolla 8" long. July Sept. 



7. S. INTEGRIFOLIA. (S. hvssopifolia. Pers. S. Caroliniana. Ph.) 



St. erect, nearly simple, and, with the whole plant, densely pubescent; Irs. 

 ovate-lanceolate, and linear-lanceolate, tapering to the base, subacute. entire, 

 subsessile; rac. loose, leafy; bracts lanceolate; Jls. large. 1\. Mid. States to 

 Ark., on dry hills. Stem 1 2f high, with large, blue flowers in terminal ra- 

 cemes. The leaves (1 2' long) vary in breadth and margin, the lowest being 

 sometimes ovate and crenate. Corolla bright blue at the summit, nearly white 

 at base, 8 9" long. June, July. The plant is intensely bitter. 



8. S. CANESCENS. Nutt. (S. serrata and S. incana. Spr. fide Hook.') 



St. erect, tall, pubescent ; Ivs. petiolate, oblong-ovate or ovate, rounded or 

 attenuate at base, minutely pubescent both sides, paler beneath, margin crenate, 

 apex acute, the lower cordate ; rac. terminal and axillary, pedunculate, panicu- 

 late ; bracts lanceolate and lance-linear; Jls. canescent. Dry grounds, Middle 

 and Western States, abundant. Stem usually purple, 1 3f high. Leaves 2 

 3' long, | as wide, often with a purple margin and purplish spots. Flowers 

 rather numerous, large and showy. Corolla 10" long, tube white, lips blue. 



9. S. CORDIFOLIA. Muhl. (S. versicolor 1 ? Nutt.) 



Stout, branching, clothed with a soft, glandular pubescence in all its parts; 

 Ivs. broadly cordate, large, obtusely dentate, nearly smooth ; petioles very long ; 

 rac. ternate, terminal ; bracts ovate ; fls. smaller. Nuttall. Open woods and 

 prairies, Western States. I have specimens essentially agreeing with the 

 above, in which the leaves are 3 4' long, 2 3' wide. Flowers in a large, dif- 

 fuse panicJe, less showy than in the last species. Bracts broad-ovate and near- 

 ly sessile, viscidly pubescent. Corolla S" long, upper lip blue, lower white. 



22. PRUNELLA. 



Calyx about 10-ribbed, upper lip dilated, truncate, with 3 short 

 teeth, lower lip with 2 lanceolate teeth ; filaments forked, one point 

 of the fork bearing the anther. 



P. VULGARIS. Self-heal. Blue-curls. 



St. ascending, simple ; Ivs. oblong-ovate, toothed, petiolate ; upper lip of 

 cor. truncate, with 3 awns. 1\. A very common plant, in meadows and low 

 grounds, N. Am., lat. 33 to the Arc. Sea. The stem is nearly a foot high, 

 (2f in la. ! and 111. !) obtusely 4-angled, hairy, simple or slightly branched. 

 Leaves few, opposite, slightly toothed, the stalks gradually becoming shorter 

 from the lower to the upper pair which are sessile. Flowers blue, in a large 

 ovate spike of dense verticils. Bracts imbricated, reniform, 2 beneath each 

 verticil. Flowering all summer. 



TRIBE 7. NEPETEJE. Calyx oblique, upper teeth longer. Corolla bilabi 

 ate, upper lip vaulted, lower spreading, throat mostly inflated. Stamens as- 

 cending or diverging, the upper pair longer. 



* 23. NEPETA. 



Said to be from Nepet, a town in Tuscany. 



Calyx arid, striate ; upper lip of the corolla emarginate, lower 3- 

 lobed, the middle lobe largest and crenate, margin of the orifice re- 

 flected ; stamens approximate. 



