ORDER 91. LABIATJ3. 245 



the middle is the largest, Fil. 2, fertile, elongated, ascending toward the 

 upper lip, having a tooth on the side. > S. Europe. 



R. officinalis. Shrub .evergreen with opposite, linear-oblong, obtuse, shining leaves. 

 Flowers axillary and terminal, bright blue, fragrant of camphor. 4f. 



25. MONARDA, L. MOUNTAIN MINT. Calyx elongated, cylindric, 

 striate, subequally 5-tootlied. Cor. ringent, tubular, upper lip linear, lower 

 lip reflexed, 3-lobed, the middle lobe narrowest. Sta. 2, fertile, ascending 

 beneath the upper lip, and mostly exserted, anth. cells divaricate at base, 

 connate at apex. U Verticils few, dense, many-flwd., bracted. Jl. Sept. 



* Calyx densely hairy in the throat. Corolla purple or whitish Nos. 1, 2 



* Calyx naked in the throat. Corolla scarlet or yellow No*. 3, 4 



1 M. fistulosa L. Horsemint. Wild Bergamot. Lvs. ovate to lanceolate, pointed, 



serrate or subentire, petiolate ; flowers in large terminal heads ; corolla? 1', exserted, 

 greenish white, pale lilac, or blue. Thickets, W. Vt., W. and S. 2-^4f. Variable. 



2 M. Bradtmriana N. Lvs. ovate to lanceolate, acute, rounded at base, subsessile ; 



eal. curved, teeth spinescent (as in No. 1) ; bracts and corolla purple. Prairies, W. 3f. 



3 M. puiictata L. Lvs. lance-oblong, tapering to the petiole ; bracts leafy, colored, 



longer than the pale yellow, brown-spotted corollas. Barrens, N. J., S. and W. 2 3f. 



4 M. did} ma L. St. branching, acutely 4-angled ; Ivs. broad-ovate, pointed, short- 



peiiolate ; heads terminal and subterminal, with large (IS") showy crimson corollas, 

 and bracts stained with the same hue. Swamps : rare. Often cultivated. 2f. 



26. BLEFHILIA, Raf. Calyx 13-veiued, upper lip 3-toothed, lower 

 lip shorter, 2-toothed, the teeth setaceous. Cor. upper lip short, erect, ob- 

 long, obtuse, entire, lower lip of 3 unequal, spreading lobes, the lateral 

 ones orbicular. Stam. 2, fertile, ascending, exserted. If Verticils dense, 

 approximate in a spike. 



1 O. liirsuta Benth. Hirsute all over, wide-branched ; Ivs. ov.-lanceolate, pointed, 



serrate, petiolate ; bracts oblong, acuminate, colored, shorter than the pale, purple- 

 spotted flowers ; cor. 5". Damp woods, N. Eng., W. Pa., and W. 1 2f. June, July. 



2 If . ciliata Raf. Thinly hirsute, simple ; Ivs. lance-oblong, distant, subsessile ; ver- 



ticils 3 5, the ovate bracts long as the calyx. Barrens, Pa., S. and W. 2-4f. Jl.-Sept. 



27. LOFHANTHUS, Benth. HEDGE Hvsr/p. Cal. lo-ribbed, oblique, 

 5-cleft, upper segments longer. Cor. upper 1 ,, bifidly emarginate, lower 

 lip 3-lobed, the middle lobe broader and crenate. Stam. diverging. It 

 Tall, erect. Verticils spicate. 



1 Li. nepetoides B. Stem smooth, stout, angles sharp ; Ivs. ovate, pointed, serrate ; 



calyx teeth ovate, obtusish, green, in spikes 2 3' long; corollas inconspicuous, 

 greenish white. Fence-rows, &c., M. and W. 3 6f. July, Aug. 



2 l<. scropliularlfolius B. Stem pubescent, angles obtuse ; leaves ovate, crenalc- 



serrate ; calyx teeth lanceolate, acute, colored ; corolla pale purple. Borders of fields, 

 M. and W. 3 4f. July, Aug. Closely resembles No. 1. 



3 L. aiiisatus B. Smooth; leaves ovate, &c., whitened beneath; calyx teeth as in 



No. 2 ; corolla azure-blue, fragrant of anise. Wis. to Dak. (Dr. Matthews.) 



28. NEFETA, L. CATMINT. GROUND IVY. Cal. tubular, 5-toothcd ; 

 Cor. tube slender below, dilated and naked in the throat, upper lip emar- 

 ,ginate, lower 3-lobcd, the middle lobe largest and crenate, margin of the 

 orifice reflected. Sta. ascending, anther cells divergent. Figs. 318, 384. 



