432 Helenieae 



herbage floccose-woolly when young; leaves thickish, simply pin- 

 nately-parted into few narrowly linear lobes, or the uppermost 

 entire; heads about 12 mm. high; the outer flowers only moder- 

 ately enlarged, not surpassing the disk; involucral bracts nearly 

 linear ; pappus of 4 equal long palese. 



Common on plains and foothills, especially in sandy soil. 



2. C. glabriuscula DC. Taller and more caulescent, branch- 

 ing above, 2-3 dm. high, herbage thinly floccose, becoming gla- 

 brate; peduncles long, stout; heads 15-20 mm. high; involucral 

 bracts glabrate, broader, thickish, obtuse; marginal flowers 

 ample, much exceeding the others; pappus of 4 equal narrowly 

 oblong acutish palese. 



Common on sandy soil or rocky ground in the lower hills and along the 

 coast. 



** Corollas whitish or at least not yellow. 



3. C. santolinoides Greene. Subacaulescent perennial ; leaves 

 all crowded on short tufted shoots from a slightly ligneous crown , 

 white-tomentose, linear in outline with broad rachis, thickly beset 

 with small oblong obtusely few-lobed crispate divisions ; peduncles 

 scapiform, 10-15 cm. long, simple or once or twice forked, glan- 

 dular and viscid; heads 12 mm. high, rather narrow; outer 

 flowers scarcely or not at 'all enlarged; pappus of 8-10 linear- 

 ligulate paleae a little shorter than the flowers. 



In the higher altitudes of the San Gabriel and San Bernardino Mountains, 

 in open pine woods. June-August. 



4. C. artemisiaefolia Gray. Stems paniculately branched or 

 nearly simple, 3-8 dm. high, furfuraceous-pubescent, somewhat 

 viscid, above glandular-hirsute; leaves 2-3-pinnately divided or 

 parted into short linear or oblong lobes ; heads loosely cymose- 

 paniculate, about 12-15 mm. high; involucral bracts lanceolate, 

 acute; flowers all alike; achenes clavate, flattened; pappus a 

 small minutely annular disk. 



Common in the chaparral belt of all our mountains. April-June. 



54. HULSEA T. & G. 



Viscid or floccose-woolly leafy herbs with alternate 

 entire toothed or pinnatifid leaves, sessile or nearly so. 



