Pycnanthkmum. XClll. LAlilA'lVK. 419 



varies^ated with pale purple and yellowisii-wliit*', in wliorled spikes. Calyx 

 with spinous teeth. Native in Italy. -^ 



4. S. Mkxicana. WilKl. I M'xicnn Snlria.—St. branchinj? at base, weak, 

 ascending, pubescent; Irs. lon^-petiolate, ovate-lanceolate, subcordate, crenate- 

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

 A/Yic/5 deciduous ; a//, slightly colored, upper lip truncate, subentirc ; cor. Am- 

 briate-ciliate, 3 — 4 times longer than the caly.x; shj. exsertcd. — % Mexico. A 

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

 long. There are several varieties, f 



5. S. spi,K\nnx.s. Ker. 1—S/. erect, glabrous ; lis. broad-ovate and ovate, peti- 

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

 _/Z.N-. opposite, racemose; brncfs deciduous; cal. scarlet, and, with the corolla, 

 pubescent, upper lip entire, acuminate, lower lip 2-toothed. — 1\. Mexico. Gar- 

 dens. Plant 2 — W high, branched. Flowers large, scarlet. Alter flowering 

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



10. ROSMARINUS, 



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



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

 ions of wliicli the middle is the largest ; j&l. 2 fertile, elongated, as- 

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



R. OFFICINALIS. Roi^nnanj. — Lis. sessile, linear, margins revolute. — An erect, 

 evergreen shrub, 4('higli, 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. SATUREIXEiE.— Calyx 5-toothed and equal, or bilabiate with 

 the upper lip triiid and the lower bifid. Corolla subbilabiate, upper lip 

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

 as long as the calyx. Stamens 2 — 4, distant, straight, diverging. 



11. PYCNANTHEMUM. Benth. 



Gr. TTVKvoi, dense, av^os, 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.) Mmintain Mint. Wild 

 Basil. — Z/U<;. oblong-ovate, acute, subserrate, rounded at the base, with 



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

 pedunculate ; hrticts subulate. — 7J. Grows "in rocky woods and hills, Can., N., 

 Mid. and W, States. Stem 2 — 4fhigh, obtusely 4-angIed, 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 arc setaceous, beard- 

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

 /?. St. taller, branched; lippcr Ivs. with wiiite blotches. — Ind. ! 



2. P. ARisTATCM. Michx. (Nepeta Virginica, Linn. 7) Wild Basil. 



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

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

 capitate and subterminal, hirsute; Irracts lance-subulate, and with the calvx 

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

 high, subsimple or much branched. Leaves 1 — 2^' bv 3 — 5', generally with 

 small, remote serratuies ami ciliate on the margin. Each branch terrninates 

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

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

 36 



