U44 Order 89. — LABIATE. 



pubescent, palo red. Stamens and style much exserted, of tlio samo hue as tho 

 corolla. Tho herb is delightfully fragrant, and used iu febrifugal infusions. 

 JL, Aug. 



iO. HEDE0 V MA, Pers. American Pennyroyal. (Gr. i)dvg, sweet, 

 o<7////, smell.) Calyx 13-striate, gibbous at base, bilabiate, throat hairy, 

 upper lip 3-toothed, lower 2-cleft ; corolla bilabiate, upper lip erect, Hat, 

 emarginate, lower spreading, 3-lobed ; stamens 2 fertile, ascending. — 

 Low, fragrant herbs. 



X II. pulegioides Pers. Los. ohlong, few-iooihed, petiolafe, narroived to each end; 

 verticils axillary, C-flowered; cor. equaling the calyx. — (l) A small, strong-scented 

 herb, held in high repute in the domestic materia medica. Stem erect, branching, 

 6' high. Leaves opposite, with 1 — 2 teeth each side, on very short petioles, 

 smooth on the upper surface, roughish beneath. Calyx ciliate, 2 lower divisions 

 spiaed. Abundant in dry pastures, Can. and U. S. Flowering all summer. 



2 II. liispida Ph. Las. linear, entire, sessile, obtuse; verticils about G-flowered; 

 cor. scarcely as long as the calyx. — .1) Borders of tho Mississippi and Hi-souri, to 

 Ark. Herb a few inches high, branching, very leafy aud somewhat hairy. Lvs. 

 6 ' long. Cal. teeth awned. Jl. 



3 ? H. bractiolata Nutt. Pubescent, simple, slender ; lvs. linear lanceolate, 

 acute at each end, entire; pedicels setaceously braeteolate, 3 to 5-flowered; cal. 

 obioag, equal; cor. minute? — Car. (Nuttall). (Mieromeria? Benth.) 



li. C0LLINS0 V RIA, L. Horse Balm. (To John Collinson, an 

 English botanist.) Calyx ovoid, 10-striate, upper lip truncate, 3- 

 toothed, lower 2-cleft ; corolla exsertcd, campanulate-ringent, upper lip 

 in 4 subequal lobes, lower lip longer, declined, fimbriate ; stamens 2 

 (rarely 4), much exserted, divergent, — U Herbs strong scented, with 

 large, ovate, serrate, petiolate lvs. and yellowish fls., in a terminal, leaf- 

 less panicle or raceme. 



* Stamens 2 perfect — the upper pair of filaments minute points Nor. 1, 2 



— the upper pair of filaments capitate. Southern No. 3 



* Stamens 4 perfect, long exserted. Leaves very large. Southern Nos. 4, 5 



1 C. Canadensis L. Glabrous or sparsely pubescent ; lvs. acuminate, coarsely 

 Berrate, abrupt or subcordate at base ; panicle loose, elongated ; cal.. teeth sub- 

 ulate, not longer than its tube ; stam. 2, exserted. — A coarse herb, in woods and 

 fields, Can. to Ky. and Car. St. 4-sided, 3 to 4f high (smooth or a little pubes- 

 cent). Lvs. thin, G to 8' long and 3 to 4' wide. Pis. in a large compound ra- 

 ceme, with opposite branches and pedicels. Cor. 5 to C long, greenish-yellow, 

 the lower lip elongated and fringed. Style and stamens very long. Flowering 

 in sum ner. 



(3. tuberosa. Lvs. somewhat rhombic-oval, acute at both ends; fls. smaller. 

 — Car to La. (Male). (C. tuberosa Mx.) 



2 C. scabriuscula Ait. Nearly glabrous; lis. small (IS" to 3' long), acute, 

 rather abrupt at base, scabrous on the upper surface; panicle very loose, leafy at 

 base; fls. small; cal. teeth subulate, scarcely longer than its tube; stam. 2, 

 sterile til. minute. — S. Car to Fla., near Savannah. Plant 2 to Gf high. Petioles 

 half as long as tho leaves. Pig. opposite. Cor. thrico as long (4 to 5") as calyx. 

 Sept. — Nov. 



3 C. punctata Ell. Pubescent, lvs. large (5 to 1' long), acuminate, rather acute 

 at base, conspicuously resinous-punciaie beneath ; rac. paniculate, the lower axil- 

 lary; fls. small; cal. teeth subulate-awned, longer than its tube; stam. 2, exserted, 

 sterile jil. capitate. — Rich soils, S. Car. and Ga. (Feuy). Plant 2 to Gf high. 

 Petioles a third as long as tho leaves. Cor. twico longer (4 to 5") than calyx 

 tejeth. Sept., Oct. 



4 C. verticillata Baldw. Yiscid-pubesceut above ; lvs. broad-oval, acute or 

 acuminate, abrupt at base, coarsely dentate, falsely verticillata by tho proximity of 

 pairs; rac. simple, elongated, with the fls. vertidUaie ; cal. teeth setaceous-pointed; 



