GENERA OR FAMILIES. 171 



upper lip flat, truncate, three-toothed, the lower bifid ; 

 corolla ringent, the upper lip concave. 



(232) Calamintha calyx two-lipped, the lower bifid ; upper lip 



of corolla straight, nearly flat. 



|J Corolla apparently one-lipped, the upper lip short or 

 nearly wanting, shorter than the stamens. 



(233) Teucrium calyx tubular, five-toothed ; upper lip of corolla 



bipartite, the tube slit along the back. 



50. Verbenaceous Plants. VERBENACE.E. 



(234) Verbena calyx five-toothed ; corolla with distinct tube, 



and unequally five-cleft spreading lirnb. 



51. Scrophulariaceous Plants. SCROPHULARIACE^:. 



* Corolla rotate, the tube very short. 

 f Stamens two. 



(235) Veronica calyx 4-5-parted ; corolla unequally four-lobed, 



the lower lobe smallest ; capsule compressed. 



ft Stamens four. 



(236) Sibthorpia calyx five-lobed ; corolla irregularly five-cleft 



capsule compressed, orbicular. 



Iff Stamens five. 



(237) Verbascum calyx deeply five-cleft ; corolla with five 



broad rounded lobes ; stamens five, often woolly ; capsule 

 ovoid. 



** Corolla distinctly tubular. 

 f Corolla spurred at the base in front. 



(238) Linaria calyx five-parted; corolla personate, the lower 



lip three-cleft, with a prominent palate closing the mouth. 



