Pycnanthemum. XCIII. LABIATE. 419 



variegated with pale purple and yellowish-white, in whorled spikes. Caljrx 

 with spinous teeth. Native in Italy. J 



4. S. Mexicana. Willd. '? Mexican Salvia. — St. branching at base, weak, 

 ascending, pubescent ; lis. long-petiolate, ovate-lanceolate, subcordate, crenate- 

 dentate, smooth above, pubescent beneath ; Jls. opposite, in terminal racemes ; 

 ^/■«c/s deciduous ; c«^. slightly colored, upper lip truncate, subentire ; cor. fim- 

 briate-ciliate, 3— 4 times longer than the cal3'x; .'!/y. exserted. — 7|. Mexico. A 

 beautiful and popular house plant. Flowers bright crimson or scarlet, near 2' 

 long. There are several varieties, f 



5. S. sPLENDENs. Ker. 1 — SL erect, glabrous ; lis. broad-ovate and ovate, peti- 

 olate, rounded or acute at base, glabrous both sides, dent-serrate, acuminate ; 

 Jls. opposite, racemose ; brac/s deciduous ; cal. scarlet, and, with the corolla, 

 pubescent, upper lip entire, acuminate, lower lip 2-toothed. — % Mexico. Gar- 

 dens. Plant 2 — 4t' high, branched. Flowers large, scarlet. After flowering 

 the calyces enlarge, and become as showy as the corollas, f 



10. ROSMARINUS. 



An ancient Latin name, compounded of ros, dew, and WMrJnws.of the sea. 



Corolla bilabiate, upper lip 2parted, lower lip reflexed, in 3 divis- 

 ions of which the middle is the largest ; fil. 2 fertile, elongated, as- 

 cending towards the upper lip, having a tooth on the side. 



R. OFFICINALIS. Rnscmary. — Lis. sessile, linear, margins revolute. — An erect, 

 evergreen shrub, 4f high, much branched. Leaves opposite, obtuse, linear-ob- 

 long, entire, smooth, dark green and shining above, downy and sometimes 

 whitish beneath. Flowers axillary and terminal, of a bright blue color, having, 

 like the leaves, a strong aromatic' fragrance like camphor. It yields by distil- 

 lation a large proportion of fragrant oil. ■\. 



Tribe 4. SATUREINEJ3.— Calyx 5-toothed and equal, or bilabiate with 

 the upper lip trifid and the lower bifid. Corolla subbi labiate, upper lip 

 erect, flat, entire or bifid, lower spreading, trifid, lobes subequal ; tube about 

 as long as the calyx. Stamens 2 — i, distant, straight, diverging. 



11. PYCNANTHEMUM. Benth. 



Gr. TTVKvof, dense, av%s, alluding to the dense, capitate inflorescence. 



Calyx tubular, striate, 5-toothed ; upper lip of corolla nearly en- 

 tire, lower lip trifid, middle lobe longest ; sta. distant ; anth. with 

 parallel cells. 



1. P. iNCANUM. Michx. (Clinopodium. Willd.) Mmmtain Mint. Wild 

 Basil. — Lvs. oblong-ovate, acute, subserrate, rounded at the base, with 



short petioles and hoary tomentiim ; hds.offis. compound, terminal and lateral, 

 pedimculate ; bracts subulate. — %. Grows "in rocky woods and hills, Can., N., 

 Mid. and W. States. Stem 2— 4f high, obtusely 4-angled, erect, and, like the 

 rest of the plant, covered with soft, whitish down. Leaves whitish beneath. 

 Flowers pale red with purple spots, on white, tomentose peduncles, in dense 

 heads, and with numerous bracts, of which the inner ones are setaceous, beard- 

 ed at the end; the outer ones are lanceolate. Plant aromatic. Jl. Aug. 

 /?. St. taller, branched ; upper lis. with white blotches. — Ind. ! 



2. P. ARisTATUM. Michx. (Ncpeta Virgiuica, ZyMw. ?) Wild Basil. 



S^. hirsute-pubescent, brachiate-corymbose; lis. ovate-lanceolate, briefly 

 petiolate, acute at base, subserrate, pubescent, acuminate ; verticils terminal, 

 capitate and subterminal, hirsute; bracts lance-subulate, and with the calyx 

 terminated by awns.— Woods and barrens, N. Y., Mass. to Miss. ! Stem 1 — 3f 

 higli, subsimple or much branched. Leaves 1— 2i' by i — y, generally with 

 small, remote serratures and ciliate on the margin. Each branch terminates 

 in a small (i' diam.) head with one or tvv-o dense whorls just below it. It is a 

 more .spreading and hairy plant than P. muticum. Jl. Aug. 

 36 



