SUNFLOWER FAMILY 121 
nereous- or canescent-velutinous or hispid-canescent, all basal or subbasal, the bases of 
leaves of the preceding s season persisting on the stout caudex, ovate to rhombic or orbicular, 
Oo 
nceolate to lance-ovate. Receptacle somewhat convex, the receptacular. bracts softly 
scarious, folded, embracing the achenes and falling with them. Rays when present ae 
linear-elliptic, tridenticulate or entire, more or less puberulent on the back; disk-flow 
perfect, fertile, their corollas tubular with slender tube and cylindric throat, 5- epether! 
Anthers cordate- -sagittate at base. Style-branches slender, hispidulous, with obtuse ap- 
blackish body and whitish corky border, the pappus of 2 short subulate awns and an erose 
crown of united squamellae, these in age thickened and corky, continuous with the margins 
of the achenes. [Name Greek, meaning Encelia-like. ] 
A genus of 4 species, natives cn conor. regions from Idaho through oop ehenices Basin to Inyo County, California, 
and northwestern Arizona. Type species, lla D. C. Eat 
PA ie se age dt ne shorter than the blade or rarely equaling it; face of achene ar ‘_ nes se even 
nllei 
Bestalels saree ~ acatcely winged, one and one-half to over two or more times as long as a de, 
equaling it in young leaves; face of achene partially or completely covered with straight, eas a villous hairs. 
‘aulis. 
5168. Helianthella uniflora on 
5169. Helianthella quinquenervis $171. 
5170. Bali thoall 334, 
