466 



ORDER XCI. LABIATE. 



Genus VI.— THY'MUS. L. 13—1. 



(From thutnos, strength ; the smell of thyme reviving persons.) 



Calyx bilabiate; many-nerved, throat hairy; upper lip three- 

 toothed, spreading ; inferior bifid, the awl-shaped division cili- 

 ate ; throat villous. Corolla naked within, upper lip flat, lower 

 three-lobed, middle lobe the longest. 



1. T. skrpyl'lum, (L.) Stem procumbent, canescent. Leaves small, 

 with short petiole?, ovate, scabrous, flat. Upper lip of the calyx with 

 short, lanceolate teeth, the lower subulate, ciliate. — Nearly white. 

 Europe, Asia, and Africa. Thyme. 



Genus VIL— MICROME'RIA. 13—1. 



Calyx tubular, many-striae, 5-toothed, teeth nearly equal ; 

 throat often villous within. Corolla bilabiate ; upper lip erect, 

 entire or emarginate, nearly flat ; lower lip with nearly equal 

 lobes, spreading. Stamens 4. 



1. M. bracteola'ta, (Benth.) Stem pubescent, simple, slender. 

 Leaves linear-lanceolate, acute, entire. Pedicels 3 — 5-flowered. Co- 

 rolla minute. — Carolina. Hcdeoma bracteolata, Nutt. 



2. M. Brown'ei, (Benth.) Stem glabrous, prostrate, branches filiform. 

 Leaves roundish-ovate, obtuse, subcrenate, glabrous. Peduncles elon- 

 gated. Calyx villous within. — Florida. 



Genus VIII.— CALAMIN'THA. Pursh. 13- 

 (From kalos, beautiful, and mentha, mint.) 



Calyx tubular, ribbed, glabrous ; throat closed with hair after 

 flowering. Corolla pubescent, with the throat inflated, the up- 

 per lip emarginate, erect, the lower one 3-parted, with the seg- 

 ments obtuse, nearly equal. Stamens 4. 



1. C. grandiflo'ra, (Pursh.) Stem slightly pubescent, terete. Leaves 

 ovate, obtuse, slightly toothed, glabrous. Floicers in opposite, dichot- 

 omous clusters. Stamens shorter than the corolla. Anthers crescent- 

 shaped. — Rose-color, spotted with purple. U- June — Aug. Middle 

 Oar. and Geo. 



2. C. coccin'ea, (Xutt.) Glabrous, or covered with the lightest pu- 

 bescence. Leaves obovate-oblong, or cuneate-linear, obtuse, nearly en- 

 tire, narrowed into a short petiole. Upper lip of the calyx 3-toothed ; 

 calyx villous within. Verticels elongated, 2 — 6-flowered. — Red. East 

 Florida. 



3. C. canks'cens, (T. & G.) Canescent when young. Leaves linear, 

 obtuse, entire, margin revolute, somewhat fasciculate. Verticels 2-flow- 

 ered. Upper lip of the calyx 3-toothed. Corolla twice as long as the 

 calyx. — Red. West Florida. 



Genus IX.— CERANTHE'RA Ell. 13—1. (Diccrandra, Benth.) 

 (From keras, a horn, and anthera, an anther.) 



Calyx bilabiate ; the upper lip emarginate, the lower 2-cleft. 



