524 



DICOTYLEDONES. 



b. 4-stamened, didynamous (Fig. 564). Scrophularia 

 (Fig-wort, Fig. 565) has cjmose inflorescences in a panicle; the 

 corolla (Fig. 565) is urceolate, short two-lipped ; the posterior 



FIG.. 581. Antirrhinum majus. A flower, and 

 the upper lip of a flower with the stamens. 



FIG. 666. Digitalis 

 purpurea. 



stamens are present as a scale below the upper lip of the 

 corolla (Fig 565 s). S. nodosa has a tuberous rhizome. Pentstemon; the 

 posterior stamen is barren and very long. Antirrhinum (Snapdragon). 

 The corolla (Fig. 564) is personate, i.e. bilabiate, but with the 



FIG. 565. Scrophularia nodosa. Protogynous flower in various stages : A ? stage ; g 

 the stigma projecting from the throat of the corolla ; B the same in longitudinal section; 

 C S stage, the stigma is bent down and its former position occupied by the stamens ; s 

 etaminode ; g stigma ; d nectary. 



under lip arched to such an extent that it meets the upper lip, 

 closes the corolla throat, and entirely conceals the stamens and 



