PYCNANTHEMUM. XC1II. LABIATE. 419 



variegated Vith pale purple and yellowish- white, in whorled spikes. Calyx 

 with spinous teeth. Native in Italy. 



4. S. MEXICANA. Willd. 'I Mexican Salvia. St. branching at base, weak, 

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

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

 bracts deciduous ; col. slightly colored, upper lip truncate, subentire ; cor. fim- 

 briate-ciliate, 34 times longer than the calyx ; sty. exserted. 1|_ 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 St. erect, glabrous ; Ivs. broad-ovate and ovate, peti- 

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

 fls. opposite, racemose ;- bracts deciduous ; cal. scarlet, and, with the corolla, 

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

 dens. Plant 2 4f high, branched. Flowers large, scarlet. After flowering 

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



10. ROSMARlNUS. 

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



Corolla bilabiate, upper lip 2-parted, 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. Rosemary. Lvs. 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. SATUREINEJB. Calyx 5-toothed and equal, or bilabiate with 

 the upper lip trifid 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 24, distant, straight, diverging. 



11. PYCNANTHfiMUM. Benth. 



Gr. VVKVOS, dense, avSos, 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.') Mountain Mint. Wild 

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



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

 pedunculate ; bracts subulate. Tj. Grows in rocky woods and hills, Can N ' 

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

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

 * lowers 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. 

 0. St. taller, branched ; upper Ivs. with white blotches. Ind. ! 



2. P. ARISTATUM. Michx. (Nepcta Virginica, Linn. ?) Wild Basil, 



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

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

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

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

 high subsimple or much branched. Leaves 12*' by _f ' srenerallv with 

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

 in a small ($ 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 



