340 Key to the System of 



1515. Leaves all denticulated. 



Coast-plant, somewhat shrubby, comparatively tall ; leaves 

 from narrow-elliptic to obovate, perceptibly succulent ; 

 headlets of flowers rather large, few or several corymbously 

 together, long-rayed ; involucre conspicuously supported 

 by accessory small bracts ; fruits streaked, often glabrous. 



S, spatulatus. 



Upper leaves mostly entire ... ... ... ... 1516 



1516. Headlets of flowers rather large, few together. 



Desert-plant, hardly tall ; leaves greyish-green, firm, mostly 

 from elliptic- to lanceolar- ovate, often acute, at the base 

 bilobed ; headlets of flowers large-rayed ; accessory bracts 

 few or almost obliterated ; fruits beset with minute hair- 

 lets. S. magnificus. 



Headlets of flowers rather small, many together. 



Forest-plant, comparatively tall ; leaves almost mem- 

 branous, greyish-green, mostly from spatular- to elliptic- 

 ovate, often obtuse ; headlets of flowers bluntly rayed ; 

 accessory bracts few or almost obliterated ; fruits usually 

 beset with minute hairlets. S. velleyoides. 



1517. Inflorescence axillary. 



Sylvan, finally arborescent and even of considerable height, 

 densely invested with whitish or greyish stellular hair- 

 lets ; leaves large, firm, from lanceolar to elliptical, 

 almost or quite entire, soon glabrous above ; headlets 

 of flowers rather small, in axillary panicles or racemes 

 or clusters ; involucral bracts also beset with stellular 

 hairlets ; corollas much exserted ; alveoles of receptacle 

 prominent ; fruits streaked, glabrous ; pappus-bristlets 

 in a single row. S. Bedford!. 



Inflorescence terminal ... ... ... ... 1518 



1518. Conspicuously beset with cottony vestiture. 



Somewhat woody, seldom tall ; leaves firm, from lanceolar 

 to linear, entire or somewhat denticulated, rarely lobed, 

 often recurved at the margin ; headlets of flowers small, 

 few or several together ; involucral bracts acute, also 

 beset with close vestiture ; fruits generally bearing 

 minute hairlets. S. Georgianus, 



Almost or quite glabrous ... ... ... ... 1519 



