264 PROCEEDINGS OF THE AMERICAN ACADEMY 



oblanoeolate leaves (1 to 2 inches long) sometimes glabrate above : 

 involucres narrower and rather more firm, 1| lines long, shortly toothed, 

 somewhat tomentose : flowers yellow, glabrous. — E. Kingii, var. laxi- 

 folium, Torr. & Gray, Rev. 165. Wahsatch Mountains. 



65. E. MULTicEPS, Nees. Densely white-tomeutose throughout, 

 rather diffusely branched at base : leaves narrowly oblanceolate, 1 or 2 

 inches long: peduncles 2 to 6 inches high : involucres rigid, narrowly 

 turbinate, H to 2 lines long, with very short teeth; one of the bracts 

 often foliaceous: flowers rose-colored, pubescent, a line long. — Ne- 

 braska and Colorado. 



66. E. SPATHULATUJi. Gray, Proc. Am. Acad. x. 76, Tomentose 

 throughout, somewhat diffu^e at base, the stout peduncles (8 inches high) 

 usually bearing a simple few-rayed umbel : leaves linear-oblanceo- 

 late, 2 to 4 inches long: involucres rather broadly turbinate and I'igid, 

 2 lines long, with broad acute teeth : flowers white, glabrous, 2 lines 

 long. — S. Utah. 



++ ++ Peduncles mostly tall and stout, from a sparingly branclied caudex : heads 

 solitary or few, in a long-jointed subumbellate cj-rae : flowers white or rose- 

 colored. — (§ Capitellata, Torr. & Gray, and § Capitata, in part.) 



67. E. LATiFOLiUM, Smith. Stout, tomentose throughout: pedun- 

 cle not fistulous : leaves oblong to ovate : involucres tomentose, 2 lines 

 long, in large dense heads (solitary, or few in a nearly simple umbel) : 

 flowers glabrous. — E. nhlongtfolmm, Benth. ; Torr. & Gray, Rev. 167. 

 Seashore, California. 



68. E. NUDUM, Dougl. More slender, mostly glabrous above : pe- 

 duncle fistulous or inflated : leaves broadly ovate to oblong, cordate or 

 abruptly cuneate at base, glabrate above : involucres glabrous or nearly 

 so, 2 or 3 lines long, in smaller and more numerous heads in a sparingly 

 branched panicle : flowers glabrous or somewhat villous. — Var. pau- 

 CIFLORUM. Involucres solitary or occasionally in pairs, much scattered. 

 — Var. OBLONGiFOLiUM. Often somewhat tomentose throughout: 

 leaves oblong, narrowed to a long slender petiole : bracts occasioually 

 foliaceous : flowers usually somewhat pubescent. E. affine, Benth. — 

 Washington Territory to S. California. 



69. E. ELATUM, Dougl. Leaves large, villous-pubescent, ovate- 

 oblong to lanceolate : peduncle (fistulous or inflated) and rigid panicle 

 IJr to 3 feet high, smooth and glaucous : involucres glabrous, in clusters 

 of 2 to 5 : flowers somewhat villous. — Washington Territory to N. 

 California and W. Nevada. 



•(- H- Stout woody perennials, more or less tomentose, virgately branched and 

 very leafy : leaves small (9 lines long or less), shortly petioled and often 



