176 PLANTS OF MASSACHUSETTS. 



formerly some reputation as a sudorific ; has many flowers in 

 whorls, and receives its specific name from Mentha pulegium, L. 



COLLINSONIA. L. 2. 1. 



In honor of P. Collinson, a correspondent of Linnaeus ; a 

 North American genus, containing 7 species. 



C. Canadensis. L. Horse Balm. A strong-scented plant, 

 2-3 feet high, with large yellow flowers on a long terminal pani- 

 cle, and with large, broad leaves below ; in hedges and open 

 woods ; matures but one seed in the calyx ; July. It is some- 

 times called Horseweed. 



Salvia. L. 2. 1. 



From the Latin to save, from its supposed healing powers ; a 

 large and rather handsome genus of 112 species, widely spread 

 over the warmer parts of the earth ; near 50 species are found in 

 North and South America ; many of those of tropical regions 

 have splendid flowers. Two are commonly cultivated in gardens ; 

 near 100 species have been introduced into gardens in England. 



S. officinalis. L. Sage. Common Sage. Well known for 

 its aromatic odor, its use in cookery, and for its decoction, taken 

 for its sudorific property ; a native of the South of Europe. 

 The Chinese use it as a tonic. 



>S. sclarea. L. Common Clary. A larger plant with larger 

 leaves and flowers, and stronger odor ; from Italy, and not very 

 common. Has its specific name from the Greek for stiff, as it is 

 a stiff plant. 



Rosmarinus. L. 2. 1. 

 R. officinalis. L. Rosemary. From the South of Europe ; 

 cultivated for properties similar to those of Sage ; grows near the 

 sea, and named Sea-deio ; a fine aromatic tonic, in considerable 

 use formerly ; shrubby. 



