128 DIDYNAMIA. 



182. PRUNELLA. Upper lip of the calyx with 3 very short acute 

 teeth ; filaments forked, 1 of the points bearing the anther; 



II. ANGIOSPERMIA. 



* Calyx four -cleft. 



183. BARTSIA. Calyx coloured ; corolla ringent, with a con- 



tracted orifice ; upper lip longest, concave, entire ; lower 

 in 3 equal reflexed lobes ; capsule ovate, compressed, of 2 

 cells ; seeds angular. 



184. RHINANTHUS. Calyx inflated, 4-toothed ; upper lip of the 



corolla compressed, lower one plane, 3-lobed ; capsule of 2 

 cells, obtuse, compressed ; seeds compressed, imbricated. 



186. MELAMPYRUM. Upper lip of the corolla compressed, with a 

 narrow reflexed border at each side ; lower lip in 3 nearly 

 equal segments ; capsule oblong, 2 -celled, oblique, opening 

 on one side ; seeds in pairs, tumid, smooth. 



185. EUPHRASIA. Calyx tubular, 4-toothed; upper lip of the 



corolla divided ; lower one spreading, of 3 notched lobes ; 

 anthers spinous ; capsule of 2 cells ; seeds striated. 



* Calyx five-cleft. 



1 89. SCROPHULARIA, Corolla subglobose ; limb contracted, short- 



ly 2-lipped, upper lip 2-lobed (with a small interior lobe 

 frequently within), lower 3-lobed. Capsule of 2 cells. 



1 90. DIGITALIS. Calyx in 5 segments ; corolla bell-shaped, in- 



flated beneath ; stamens bent ; capsule of 2 cells. 



188. ANTIRRHINUM. Calyx in 5 segments; corolla closed with 

 a palate, prominent or spurred at the base behind ; cap- 

 sule of 2 cells, bursting unequally at the summit. 



187 PEDICULARIS, Calyx inflated; corolla ringent; upper lip 

 compressed, arched, the lower plane, 3-lobed ; capsule ob- 

 lique, compressed, 2-celled ; seeds pointed. 



