394 Key to the System of 



1719. Leaves rather large, mostly serrated. 



Ascending or erect, generally riparian, often glabrous, of 



C'ticularly bitter taste ; leaves from orbicular to 

 ceolar-ovate, sessile ; flowers axillary, solitary, sup- 

 ported by narrow bracteoles ; corolla upwards pale-pink ; 

 staminodia present ; fruit ovate-globular, four-valved. 



G. Feruviaua. 



Leaves quite small, hardly denticulated. 



Dwarf, often creeping, beset with very short hairlets or 

 glabrous ; leaves from obovate- to cuneate-elliptical, 

 sessile; flowers quite small, axillary, solitary, supported 

 by narrow bracteoles ; corolla upwards pale -pink ; 

 staminodia present ; fruit globular -ovate, four-valved. 



G. liana. 



VERONICA. 



1720. Annual. 



Usually erect, never tall ; leaves quite small, from obovate- 

 to linear-elliptical, almost without denticulations, mostly 

 sessile ; flowers very small, in leafy spike-like racemes ; 

 calyx four-cleft ; corolla bluish or almost white ; fruit 

 obcordate, compressed against the dissepiment. (Probably 

 immigrated.) V. peregrina. 



Perennial 1721 



1721. Herbaceous 1722 



Somewhat shrubby ... ... ... ... ... 1729 



1722. Flowers nearly all singly terminal. 



Alpine, very dwarf, amply tufted ; leaves quite small, of 

 thick texture, crowded into four rows, sessile, mostly 

 ovate, concave, entire ; flowers sessile ; calyx five- cleft ; 

 corolla pink, its tube rather long, lobes sometimes five ; 

 fruit obcordate, compressed parallel to the dissepiment. 

 Figure 104. V. densifolia. 



Flowers in bracteate or leafy racemes ... ... 1723 



1723. Leaves nearly or quite entire ... ... ... 1724 



Leaves indented or pinnatisected ... ... ... 1725 



