476 LABIATE. 



** Stamens 4. - 



t Corolla nearly regular, its tube scarcely longer than 

 the calyx. 



3. MENTHA (Mint). Calyx equal, 5-toothed ; corolla 

 4-eleft, with a very short tube. (Name, the Latin 

 name of the plant.) 



ft Corolla %-lipped, lips nearly equal in length. 



4. THYMUS (Thyme). Calyx 2-lipped, 10 13-rib- 

 bed, the throat hairy ; corolla with the upper lip 

 notched, the lower 3-cleft ; flowers in heads, or whorls. 

 (Name, the Latin name of the plant.) 



5. ORIGANUM (Marjoram). Calyx 5-toothed, 10 13- 

 ribbed, the throat hairy ; flowers in spikes, which are 

 imbricated with bracts. (Name from the Greek oros, a 

 mountain, and ganos, joy, from the favourite station of 

 the family.) 



ttf Corolla with the upper lip very short, or wanting. 



6. AJUGA (Bugle). Calyx 5-cleft ; corolla with a long 

 tube, the upper lip very short, lower 3-cleft. (Name said 

 to be corrupted from the Latin Abiga, an allied plant.) 



7. TEUCRIUM (Germander). Calyx 5-cleft ; corolla 

 with the upper lip deeply 2 -cleft, lower 3-cleft. (Name 

 from Teucer, who is said to have been the first to use it 

 in medicine.) 



tttt Corolla %-lipped, lips unequal; calyx 5-toothed ; 

 stamens longer than the tube of the corolla. 



8. BALLOTA (Black Horehound). Calyx funnel- 

 shaped, with 5 sharp equal teeth ; corolla with the 

 upper lip erect, concave ; lower 3-lobed, the middle 

 lobe largest, heart-shaped ; two front stamens the longest. 

 (Name in Greek signifying rejected, from the offensive 

 smell of the plant.) ; 



9. LEONURUS (Motherwort). Calyx with 5 prickly 



