Class XIV. Order I. 235 



consisting of distinct, remote whorls. Pedicels glabrous. 

 Flowers purple. The whole plant has a pleasant, aromatic 

 flavor, well known. Flowers in August. Perennial. 



237. HYSSOPUS. 

 HYSSOPUS NEPETOIDES. L. Tall Hyssop. 



Spikes formed of whorls, cylindrical, leaves sub- 

 cordate, ovate, dentate, acuminate. 



One of our tallest labiate plants. Stem large, square, smooth, 

 three to six feet high. Leaves opposite, with large teeth. Corollas 

 small, pale purple, with exserted stamens and styles. Woods, 

 Chelsea beach island. July. Perennial. The characters of 

 11. scrophularifolius and H. nepetoides are blended in this plant, and 

 I am convinced with Mr. Eaton that they are probably varieties. 



238. TEUCRIUM. 

 TEUCRIUM CANADENSE. Wild Germander. 



Stem herbaceous, erect ; leaves lanceolate serrate, 

 whitish underneath ; spike crowded, many flowered, 

 long. Midi. 



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



239. LAMIUJVL 



LAMIUM AMPLEXICAULE. L. Henbit. 



Floral leaves sessile, clasping, obtuse. 



Not larger than Glechoma hederacea. Leaves opposite, 



roundish, heart shaped or reniform, crenate and cut, the upper 



ones clasping. Calyx hairy. Corolla red, or white. Natur- 

 alized in cultivated ground. May. Annual. 



210. LEONURUS. 



LEONUIUTS CARDIACA. L. Motherwort. 



Upper leaves lanceolate, three lobed or entire. Sm. 



