106 GEOLOGY OF OHIO. 



Mentha piperita L. Peppermint. 

 Widely distributed. 



Mentha sativa L. Whorled Mint. 

 Licking Co., H. L. Jones ( Cat. ) 



Mentha syi,vestris alopecuroides (Hall) Baker. Horse Mint 

 Franklin Co., E. V. Wilcox. 



Mentha viridis L. 



Northern and central Ohio; Cincinnati, Jos. F. James (Cat.) 



87. COLLINSONIA L. HorsE-Bai,m. 



Collinsonia canadensis L. Rich-weed. Stone root. 

 Distributed over the state. 



88. LYCOPUS Tourn. Water-HorEhound. 



Lycopus rubellus Moench. 



New Antioch (Clinton Co.,) J. S. Vandervort; Lorain Co., A. A. Wright (Cat.) ; 

 Painesville and Columbus, Wm. C. Werner. 

 Licking Co., H. L. Jones (Cct.) 



Lycopus'Sinuatus Ell. ' 



Common. 



Lycopus europaeus L. 



Lorain Co., A. A. Wright (Cat ) ; Cincinnati, Jos. F. James (Cat.) 



Lycopus virginicus L. Bugle-weed. 

 Common. 



89. CUNILA L. Dittany. 



Cunila Mariana L. Common Dittany. 

 Southern half of the state. 



90. PYCNANTHEMUM Mx. Mountain Mint. Basii,. 



Pycnanthemum ARISTATUM Mx. 



"Ohio," J. L. Riddell (Synop. 1835.) 



Pycnanthemum fi,exuosum (Walt.) B. S. P. (P. linifolium Ph.) 

 Frequent. 



Pycnanthemum incanum ( L. ) Mx. 



Throughout the state, but not common. 



Pycnanthemum muticum ( Mx. ) Pers. 



Licking Co., R. H. Ingraham.H. L.Jones (Cat.). 



