82 labiat/t:, 



glabrous Anisomeles. 



"^^ Corolla strongly or slightly 2-lippeil, upper lip often 

 concave. Anther.s with linear narrow cells. Stamens 2. 



Salvia. 



^^^ Corolla 2-lipped or nearly actinomorphic, with slightly 

 different lobes. Upj^er lip, if exists, flat or very slight- 

 ly concave. Anthers ovate. 



^ Calyx 10-13-rarely l.>nerved. Corolla 2-lipi)ed. 

 Stamens ascending under the upper lip. 

 f CoroUa exserted recurved ascendent. ...3Ielissa. 



tt Corolla straight Calamintha. 



^"^ Calyx 10-13-nerved. CoroUa 2-lij)ped. Stamens 

 patent from the basc, straightly spreading, nearly 

 equa] Oviganum. 



°^ Calyx 10-13-nerved. Corolla nearly actinomorphic. 

 Stamens spreading straight from the base and 

 nearly equal. 

 f Fertile stamens 2, tlie anterior with divaricate 



cells. Nutlets with flat truncate top 



Lycopus. 



tt Stameus 4, with parallel cells. Nutlets with 



roinided top Mentha. 



oa™ Calyx 10-nerved. Corolla differently 2-lipped or 

 nearly actinomorphic. Stamens erect sjireading, 

 didynamous. 

 •j" Fertile stamens 4, erect, spreadiug, the anterior 



longer. CoroUa short 5-fid Perilla. 



ff Fertile stamens 2, the ijosterior ; the anterior 

 reduced to staminodes. CoroUa slightly 2-\\])- 

 ped ; upper lip emarginate ; lower lip 3-fid.... 

 Mosla. 



2. Anthers i-ounded. with cells v\-hich are connate into one cell 



