288 Key to the System of 



CHORETRUIK. 



1310. Flower-clusters arranged in racemes ... 1311 



Flowers simply arranged in spikes or scattered ... 1312 



1311. Corolla white. 



Branchlets rather lax, angular ; leaves minute, pointed ; 

 flower-clusters short-stalked ; bracts and bracteoles 

 roundish ; corolla cleft into nearly distinct petals ; 

 stigma five-lobed ; fruit ovate-globular, greenish. 



C. glomeratum. 



Corolla yellow. 



Branchlets rather lax, angular ; leaves minute, pointed ; 

 flower-clusters short-stalked ; bracts and bracteoles from 

 ovate to orbicular ; corolla cleft into nearly distinct 

 petals ; stigma five-lobed ; fruit globular-ovate, greenish. 

 Figure 64. C. clirysanthiim. 



1312. Flowers quite sessile. 



Branchlets rather rigid, slightly streaked ; leaves minute, 

 curved, much pointed, at first crowded ; flowers solitary, 

 generally crowded into rather long spikes, each surrounded 

 by brown bracts and bracteoles ; fruit ovate-globular. 



C. spicatum. 



Flowers slightly stalked. 



Branchlets rather lax, slightly streaked; leaves minute, 

 much pointed; flowers solitary, each surrounded by 

 bracts and bracteoles, generally somewhat distant ; 

 corolla white, each segment beset inside with a tuft of 

 yellow very minute hairlets ; fruit ovate-globular, pale. 



C. lateriflorum. 



XiEPTOXKERXA. 



1313. Flowers in rather elongated spikes. 



Branchlets distinctly angular, bluntish at the apex ; leaves 

 minute, narrow, pointed ; corolla yellowish-brown ; 

 stigma five-lobed; fruit globular-ovate, outside reddish. 



L. acida. 



Flowers in quite abbreviated spikes. 



Branchlets very rigid, hardly angular, spinescent ; leaves 

 minute, pointed, fugacious ; corolla soon black-purplish ; 

 stigma five-lobed ; fruit from ellipsoid- to globular-ovate, 

 greenish outside. L. aphylla. 



