88 University of California Publications in Botany. (T OL - 3 



Plants tall, mostly 3 to 6 dm., cymosely branching above. 

 Leaves linear to filiform : rays about 30 to 40 or 80. 

 Involucre pubescent. 



Herbage cinereous with spreading hairs 7. E. Breweri. 



Herbage strigose-pubescent (especially the leaves) 



8. E. foliosus. 



Involucre glabrous 9. E. striatus. 



Leaves broadly spatulate to oblong or ovate: rays much over 100, 

 pink or white 10. E. Philadelphicus. 



B. Rays inconspicuous or none. 

 Perennials: 3 dm. or less high. 



Leaves entire: var. aphanactis of 3. E. concinnus. 



Leaves trifid: var. discoideus of 5. E. compositus. 



Annuals: 3 to 20 dm. high (unless depauperate). 



Branched from the base: heads long-peduncled : pappus double 



11. E. incomptus. 



Simple belcw: heads in diffuse panicles: pappus simple. 



Involucre glabrous 13. E. Canadensis. 



Involucre pubescent 14. E. linifolius. 



1. E. glaucus Ker., Bot. Reg. i. t. 10 (1815). SEASIDE DAISY. 

 Flowering stems erect, 1 to 3 dm. high, commonly one-headed. 



arising from a radical tuft of leaves crowning the fleshy caudex 

 and often also from rosulate offsets terminating prostrate woody 

 branches: leaves finely puberulent, stems pilose-pubescent, heads 

 somewhat tomentose : leaves rather succulent, spatulate or ob- 

 ovate, entire, rarely with a small tooth on each side below the 

 apex, 3 to 10 cm. long: upper cauline small and scattered: rays 

 very numerous (60 to 100 or more), rather broad, lilac or violet. 

 Common on San Miguel Island, ace. to Greene, and plentiful 

 along the seashore further north. Not reported from the main- 

 land of Southern California. 



2. E. Parishii Gray, Syn. Fl. i. pt. 2, 212 (1884). 



Stems rigid, erect, from a more or less woody base : herbage 

 silvery-white with a soft appressed pubescence: lower leaves 

 narrowly spatulate, 3 to 4 cm. long, less than 5 mm. wide ; upper 

 leaves smaller, linear, acute : heads solitary, terminating the 

 branches: involucre 5 to 6 mm. high: rays numerous, linear- 

 oblong, 1 cm. long, violet or "purple": achenes hirsute: inner 



