2S2 HEDSOMA. No. 46. 



opposite, small, oblong lanceolate or suboval, on short 

 petioles, base attenuated, end subacute, margin with 

 small remote serratures, surface rough or pubescent, 



m 



nftrved and pale beneath. 



Flowers all along the branches in axillary whorb 

 of six, nodding, on short pedicels, very small. Calix 

 as above, pubescent. Corolla very small, hardly 

 longer, white, with the lips purple, base slender, then 

 campanulatc wilh two small lips, the upper rounded, 

 seldom notched, the lower with two rounded lateral 

 lobes, and an obcordate middle lobe. Stamina and 

 siyle filiform, autheis oblong. Stigma lateral acute. 

 Fruit four small oblong seeds in the persistent calix, 

 mouth closed by the ciliated bristles of the lower lip- 



Locality — Verj^ common and abundant all over 



the United States, and in Canada, in dry woods and 



hills chiefly, but also in plains, alluvions, roads, stony 



fields. Never in moist soils. Nb where more abun- 



'.dant than in lime soils or arid grounds. 



IIISTORY—Ilwns th- fate of this plant to be suc- 

 cessively united by Linnieus and other botanists to 

 Melissa and CunUay until distinguished and named 

 by Persoon, and it is as yet commonly blended, even 

 by medical writers, with the European Pennyroyal 

 or Mentha puiei^htm, which docs not grow in Ame- 

 rica; theshap^, smell, and properties being somewhat 

 ftimllar, whence the same vulgar name; but our plant 

 a])pcai'S to be more efficir!it. 



It Lv.]ong? to the natural order of Laetatk, and to 

 Dl^.. ■ * ni^s, .jj^na of Linnaeus. It blc « *" 



twnu fro*. July to S leniucr. TI.. ua...^ of //^- 



