431 DIDVKAMIA. 



torn of the cah'x, 4, except in Phnjma, 

 which has a sohtarj seed. — Corolla moiio- 

 petalous and irregular, a little inflated at 

 the base, and holding honey, without any 

 particular nectary. Stamens in 2 pairs, 

 incurred, with the stjle between them, so 

 that the impregnation rarely fails. The 

 plants of this order are mostly aromatic, 

 and none, I believe, poisonous. The cal)'X 

 is either m 5 nearly equal segments, or 2- 

 hpped. Most of the genera aftord excel- 

 lent essential characters, taken frequently 

 from the corolla, or from some other part. 

 Thus, Pcrilla has 2 styles, of \\hich it is 

 an unique example in this class. 



Mentha a corolla whose segments ara 

 nearly equal, and spreading stamens. Engl, 

 Bot. t. 446—8. 



Lavandula the Lavender, and WeS' 

 tringia. Tracts on Natural Histoii/, 277, 

 t, 3, have a corolla resupinata, reversed 

 or laid on its back. 



Teucrium a deeply divided upper lip, 

 allowing the stamens and style to project 

 between its lobes. Engl. Bot. t, 680. 



yljnga scarcely any upper lip at all, 

 t. 77 and 489- 



