LABIATJE. 181 



Teucrium. L. 13. 1. 

 In honor of Teucer, a Trojan prince ; a genus of more than 

 70 species, chiefly in Europe, but many in other countries ; 2 in 

 the United States. 



T. Canadense. L. Wild Germander. A foot high, with a 

 square stem and downy leaves ; flowers purple in a whorled spike ; 

 whole plant hoary-pubescent ; bracts longer than the calyx ; low 

 grounds ; July. Very little use is made of the plant. 



ISANTHUS. Mx. 13. 1. 



From the Greek for equal and flower, because the 5 segments 

 of the corolla are equal ; a North American genus of 1 species, 

 and no known use ; stamens nearly equal. 



1. cceruleus. Mx. False Penny Royal. Covered with a 

 viscid pubescence ; pale-blue flowers, axillary and pedicillate ; 

 calyx becoming rusty ; banks of rivers ; June. 



Mentha. L. 13. 1. Mint. 

 From the Greek, as the poets feign that Mintha, a daughter of 

 Cocytus, w r as transformed into a plant of the same name ; a genus 

 of more than 30 species, of which near five sixths are found in 

 Europe, and the rest in very different parts of the world ; some 

 are shrubby ; about 30 have been cultivated in England ; 3 belong 

 to the United States, and 2 have been introduced. 



M. borealis. Mx. Horse Mint. About a foot high, hairy, 

 with many whorled pale-purple flowers, and strong odor ; leaves 

 lanceolate and serrate ; sandy soils ; August ; a fine plant, and 

 would be ornamental in gardens. 



M. viridis. L. Spear Mint. Too well known to need de- 

 scription ; pleasant for its odor ; July ; introduced from England. 

 It is used for culinary purposes in England, and its oil is con- 

 sidered pleasant and medicinal. 



