312 NATURAL HISTORY. 



petiolate, tapering to a point with whitish down beneath. 

 Flowers ocheous white; calyx hairy, arranged in ter- 

 minal whorls or heads. Grows in south of Europe on 

 mountainous hills, hut is also cultivated in gardens every- 

 where in Europe and the United States ; known hy the 

 name of Citron Plant. Odor very fragant and citron- 

 like ; taste pleasantly aromatic, slightly pungent, and 

 hitter. Considered medicinal, and made into tea, is use- 

 ful as a stomachic and in nervous complaints. Also used 

 as seasoning in cookery. 2. 



Ground Ivy Ale Hoof Gill over the Ground 

 (Glechoma hederacea), a creeping plant, leaves reni- 

 form, kidney-shaped, crenate ; flowers axillary, three to- 

 gether, bluish-purple. Grows everywhere by road-sides, 

 hedges, etc. Very troublesome in gardens. Odor 

 slightly aromatic; taste, acerb and bitter. Considered 

 medicinal, and formerly used in the preparation of Hip- 

 pocras or medicated wine. H . 



The Dead Nettle Henbit (Lamium album). Leaves 

 roundish, petiolate, and toothed; flowers purplish or 

 white, campanulate; stand in axillary whorls. Has a 

 sweetish, slimy taste, and faint honey-like odor. Found 

 growing in fence-corners, hedges, etc., also in cultivated 

 grounds. Sometimes used medicinally. 2. 



FIFTIETH FAMILY. PRIMULACE^E. (Class 5, L.) 



Primrose (Primula veris). Leaves radical, oval, 

 rugate, serrate; flowers yellow, pendulous, hanging in 

 tufts or tassels ; have five bright, orange spots on the 

 throat. Found in grass plats, hedges, dry ridges, etc. 

 Flowers used in Europe as tea. Odor faint and un- 

 pleasant. 1C . 



Scarlet Pimpurnel or Red duckweed (Anagallis 

 arvensis). Stem upright, acutely angled ; leaves ovate, 



