346 Key to the System of 



Corolla-lobes turned bilaterally ... 1535 



1535. Fruits much compressed. 



Creeping, glabrous ; sap hardly whitish ; leaves succulent, 

 from elliptic- to lanceolar-ovate, entire ; flowers small, 

 axillary, solitary ; lobes of the corolla nearly equal, white 

 inside ; tube very- short ; perfect stamens and pistils in 



distinct flowers, mostly on separate plants ; fertile fruit 



" T large, elliptic. 



L. platycalyx. 



roundish-ovate ; seeds comparatively large, elliptic. 



Fruits turgid or cylindrical ... ... ... 1536 



1536. Leaves from orbicular to ovate. 



Alpine plant, creeping, beset with very short hairlets ; 

 leaves quite small, somewhat denticulated ; flowers 

 minute, axillary, solitary ; perfect stamens and pistils 

 in distinct flowers, mostly on separate plants. 



L. Benthami. 



Leaves from cuneate-lanceolar to linear ... ... 1537 



1537. Beset with very short hairlets. 



Creeping ; leaves small, denticulated ; flowers quite small, 

 axillary, solitary ; corolla blue or occasionally purplish, 

 its lobes nearly equal ; perfect stamens and pistils in 

 distinct flowers, mostly on separate plants ; fertile fruit 

 oblique-ovate. L. pratioides, 



Quite glabrous ... 1538 



1538. Fruit almost globular. 



Alpine small creeping plant ; leaves very short, nearly 

 linear, entire ; flowers minute, axillary, solitary, almost 

 sessile ; lobes of the corolla nearly equal, white inside ; 

 tube very short ; fertile fruit very small. L. gelida. 



Fruit almost cylindrical. 



Lax, occasionally somewhat creeping, sometimes quite tall 

 and rambling ; stem and branches prominently triangular ; 

 lower leaves often ovate-cuneate, the upper from elliptic- 

 to linear-lanceolar, all entire or some slightly denticulated; 

 flowers small, axillary, solitary, usually on short stalklets; 

 corolla small, generally bluish inside, its upper lobes much 

 narrower than the lower. 1. anceps. 



