472 ORDER XOI. LABIAT.E. 



1. M. \tjlga're, (L.) Stem erect, branching at the base, tomentose. 

 Flov^ers numerous, in whorls. Leaves roundish, ovate, rugose, dentate, 

 tomentose beneath. Calyx with ten setaceous teeth. Corolla small. — 

 White, li. Through the summer. Common around buildings. 



White Hoarhound. 



This plant is a tonic, and in large doses cathartic. It is decidedly a family medicine, 

 and is used in the incipient stages of coughs and catarrhs with good effects. It also 

 derives celebrity from being extensively used in manufacturing the hoarhound candy 



Genus XXII.— STA'CHYS. L. 13—1. 

 (Trom stachys, a spike.) 



Calyx 5-cleft, segments awned. Upper lip of the corolla 

 vaulted ; lower lip 3-lobed, with the lateral lobes reflexed, the 

 middle lobe large, emarginate. Stamens 4. 



1. S. As'pERA, (Mich.) Stem erect, square, retrorsely hispid. Leaves 

 sessile, hnear-lanceolate, serrulate, glabrous. Flowers usually 6 in a 

 whorl. Teeth of the calyx divaricate, spiny. — Purple. H. June — 

 Aug. Pine-barrens. 1 — 2 feet. 



2. S. hyssopito'lia, (Mich.) Stem erect, generally glabrous, slender, 

 usually simple. Leaves sessile, linear-lanceolate, remotely dentate, or 

 finely serrulate. Flowers sessile, about 4 in a whorl. Calyx glabrous, 

 with the teeth rigid. Corolla slightly pubescent on the inside. — Pur- 

 ple. If. "June — Aug. Wet pine lands. 12 — 18 inches. 



3. S. His'piDA, (Pursh.) Stem erect, pubescent, hispid, with the bris- 

 tles usually retrorse. Leaves on short petioles, ovate, oblong, acute, 

 serrulate, hispid; the upper ones nearly linear. Flowers 4 — 6 in a 

 whorl. Calyx hairy; segments acute. Lower lip of the corolla whi- 

 tish with dark spots. — Yellowish-purple. If. Aug. — Sept. Pine- 

 barrens. 1 — 2 feet. 



Gexus XXIIL— LEONU'P.US. L. 13—1. 



(From Uon, a lion, and aura, a tail.) 



Calyx 5-angled, with 5 acute, expanding teeth. Corolla 

 bilabiate^ the upper lip entire, hairy, the lower 3-parted, reflex- 

 ed. Stamens 4. Anthers sprinkled with shining dots. 



1. L. cardia'ca, (L.) Stem with 4 pubescent angles. Leaves pubes- 

 cent, the lower ones 3-lobed, lanceolate, the upper ones entire, pale be- 

 neath, sometimes dentate, on petioles about an inch long. Flowers in 

 numerous axillary whorls. Calyx nearly glabrous. Corolla small, vil- 

 lous on the outer surface. — White, tinged with red. $ ov 1i. May — 

 Aug. In rich soils. Introduced. Motherwort. 



Genus XXIV.— LA'MIUM. L. 13-1. 



(From laimos, the throat.) 



Calyx tubular, hairy, with a 5-cleft expanding bordei. Co- 

 rolla bilabiate ; the upper lip vaulted, the lower lip 2-lobed, 

 toothed at the base. Anthers hairy. 



I. L. amplexicau'le, (L.) Stem pubescent, square, branching at the 



