Class XIV. Order I. 145 



acute, naked ; bractes setaceous, and, with the 

 calyx teeth, somewhat hairy. Sm. 



This well known mint spreads rapidly by its creeping roots 

 in moist places. Stems erect, smooth, acute-angled. Leaves 

 sessile, lanceolate, acute, serrate, smooth. Spikes long, acute, 

 consisting of distinct, remote whorls. Pedicels glabrous. 

 Flowers purple. The whole plant has a pleasant, aromatic 

 flavor, well known. Flowers in August. Perennial. 



175. TEUCRIUM. 

 TEUCRIUM CANADENSE. L. Wild Germander. 



Stem herbaceous, erect ; leaves lanceolate, ser- 

 rate, whitish underneath ; spike crowded, many 

 flowered, long. Mich. 



Stem erect, square, downy, a foot or more in height. 

 Leaves opposite, soft with fine down, lanceolate, acute, serrate. 

 Spike formed of small whorls of flowers, furnished with short 

 bractes. Calyx downy, its segments rather blunt. Corolla 

 pale red, the stamens issuing from a fissure in the upper side. 

 Road side, Cambridgeport. July. Perennial. 



J76. LEONURUS. 

 LEONURUS CARDIACA. L. Motherwort. 



Upper leaves lanceolate, three lobed or entire. 

 Sm. 



A common plant among rubbish and about walls. Stem 

 two or three feet high, large, square, downy. Lower leaves 

 lobed and broad, the upper ones narrower, the highest of these 

 lanceolate, entire ; all of them spreading or bent downwards, 

 downy underneath. Flowers in many whorls. Calyx teeth 

 rigid and prickly ; corolla hairy without, variegated with white 

 and red within. The herb has a strong, pungent odour, and is 

 a popular remedy in considerable request. July. Perennial. 

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