342 Key to the System of 



Flowers in corymbs. 



Never tall ; leaves all radical, copiously and densely tufted, 

 rather short, linear-cylindrical, ending in a bristlet, the 

 tufts connected by thread-like offshoots ; inflorescence 

 beset with glandule-bearing hairlets ; corolla small, red, 

 the fifth minute lobe bearing two pointed appendages; 

 fruit almost ovate, terminated by the short calyx-lobes, 

 two-celled ; seeds very numerous, almost rhomboid-ovate. 

 Figure 92. C. sobolifera. 



1523. Leaves scattered. 



Minute, erect, glabrous; leaves extremely short, from 

 ovate- to linear-lanceolar ; flowers few in a corymb ; 

 corolla very minute, white or somewhat pink, its lobes 

 without appendages ; fruit linear-cylindrical, terminated 

 by the very short calyx-lobes, two-celled, many-seeded. 



C. despecta. 



Leaves all radical ... ... ... ... 1524 



1524. Corolla produced downwards into a tubular pointed 

 appendage. 



Very small, erect, beset with scattered glandule-bearing 

 hairlets ; leaves few or several, extremely short, from 

 narrow-elliptical to orbicular ; flowers quite small in a 

 corymb, seldom numerous, exceptionally reduced to two 

 or one ; corolla white, often red-spotted, its lobes some- 

 what indented, without appendages, its tube usually 

 replaced by a slender downward prolongation ; fruit 

 almost globular, two-celled, many-seeded, hardly as long 

 as the persistent calyx-lobes. C. calcarata. 



Corolla without any basal appendage. 



Minute, erect, scantily beset with scattered glandule- 

 bearing hairlets ; stem capillary ; leaves extremely 

 short, from linear- to ovate-elliptical or spatular, never 

 numerous ; flowers few in a corymb or two or solitary ; 

 bracts unilaterally paired, somewhat succulent ; corolla 

 very small, white, its upper lobes about half as long 

 as the lower, red-spotted at the base, all only uni- 

 denticulated and without any appendages ; gynostemium 

 extremely short ; fruit quite small, almost globular, two- 

 celled, many-seeded, terminated by the persistent calyx- 

 lobes ; placentaries turgid. C . perpusilla. 



