12 CO\-TRIBUTJONS TO WESTERN BOTANY. 



ends of the raylets, and is a smaller plant. It frequents the South- 

 ern Sierras in the Lower Temperate life zone. 



E. sabulosum. 



Leaves linear-cuneate. not revolute, rounded at tip. very 

 shortly-pubescent on both sides ; peduncles 3-5 inches long, stout, 

 liivided at tip into 3 and these again three-divided and with one 

 < rarelv two) slender-pedi\ncled involucre, the raylets similarly di- 

 vided and re-divided to the end. forn ing a wide corymb, primary 

 ra s about as long as the floral peditnc'.e, raylets half the rays &r:d 

 with their divisions in proportion ; involucres narrowly-bell-shaped, 

 \\A-.i lines long, shortly toothed, scarcely any sessile; flowers ycL 

 low. broad, few. about 1 line long, Avith elliptical sepals united one- 

 third thewav up ; inflorescence smooth and glaucous to thebase,ex- 

 ceptthe wooUymarginsof the bracts ;bracts green, very small, trian- 

 gular ; lower peduncles 6-9 lines long ; tufted plants about I foot 

 high, proper stems reduced to crowns. Green River, Wyo.. on 

 barren clay in the Lower Temperate life zone. Jones. 



E. Grangerense. 



Somewhat similar to E. sabulosum in habit, but leaves nar- 

 rowly-elliptical. T-2 inches long, tapering into a slender petiole 

 about as long as the blade: floral peduncles slender. 3-6 inches 

 long, similarly branched, but rays 1-2 inches long and with 2-4 

 short raylets bearing single involucres at the end which all have 

 bracts near their base except the central ones, which are bractless. 

 and about 9 lines long; involucres broadly campanulate, deeply 

 and obtusely and scariously toothed, 2 lines long; flowers rather 

 many and similar, but white ; sepals united to the middle ; proper 

 stems reduced to crowns. This may be a variety of E. sabulosmn. 

 but it seems very distinct. It grows in similar situations at Gran- 

 der, Wyoming. 



£. Ostlnndi. 



Inflorescence repeatedly bi-to-trifurcate with nearly equal ravs 



