52 University of California Publications in Botany. t v L - 3 



Style-appendages filiform-subulate: involucral bracts more numerous. 

 Kays present. 



Outer bracts of the involucre obtuse: achenes appressed-pubescent 

 3. E. Palmeri. 



Outer bracts of the involucre acuminate : achenes lightly pubescent, 

 glabrate: leaves mostly over 1 cm. long.. ..4. E. pinifolia. 



Outer bracts of the involucre acute: achenes glabrous: leaves 

 mostly .5 to 1 cm. long 5. E. ericoides. 



Eays wanting. 



Heads in close rounded terminal cymes. 



Leaves flat, broadly linear to lanceolate (3 to 10 mm. wide) 



6. E. Parishii. 



Leaves filiform or very narrowly linear (2 mm. or less wide) 

 7. E. arbor escens. 



Heads in loose oblong panicles or racemes: leaves filiform. 



Leaves 12 mm. or less long: heads 6 to 8-flowered 



8. E. Cooperi. 



Leaves 12 to 24 mm. long: heads 8 to 12-flowered 



9. E. brachylepis. 



1. E. cuneata spathulata (Gray) Hall, comb. nov. Bigelovia 

 spathulata Gray, Proc. Am. Acad. xi. 74 (1876). B. rupestris 

 Greene, Bot. Gaz. vi. 183 (1881). Chrysoma cuneata spathulata 

 Greene, Eryth. iii. 11 (1895). C. Merriami Eastw., Bull. Torr. 

 Club xxxii. 214 (1905). 



Plant spreading, woody at base, 1 to 3 dm. high, freely 

 branching : herbage glabrous but resinous-punctate : leaves thick, 

 entire or merely undulate-margined, obovate to oblanceolate, 

 spatulate at base, obtuse, often retuse and usually mucronate at 

 summit, 6 to 15 mm. long, 3 to 10 mm. broad: heads in small 

 compact cymes or sometimes solitary: involucre turbinate, 6 to 

 8 mm. high ; bracts lanceolate to linear, chartaceous, marked with 

 a brown or greenish medial line and bordered with a silvery-sca- 

 rious margin, somewhat obtuse but usually cuspidate-tipped, the 

 outermost passing into minute bracts of the peduncle: rays (al- 

 ways?) lacking: achenes densely silky-pubescent with appressed 

 hairs: pappus-bristles copious, about equal and as long as the 

 corolla, brown. 



Most plentiful on rocky ledges of mountains on or near the 

 desert, extending into Lower California; but also found on the 



