SUNFLOWER FAMILY. 437 



Leaves broad'tsfi; coast species 4. E. arachnoideum. 



Leaves narrower; interior species. 



Annual 5. E. idoneum. 



Perennial 6. E. lanatum. 



1. E. staechadifolium Lag. Lizard Tail. Diffuse, 2 or 3 ft. high; 

 leaves pinnately parted into 5 or 7 lobes, these again pinnately parted or toothed 



or entire, the margins revolute and the under surface white with a dense t'elt- 

 like (omentum; uppei surface of leaves green and the tomentum of the stems 

 deciduous; heads 4 or .1 lines high, disposed in (dose compact corymbs; in- 

 volucres broadly oblong or somewhat turbinate, bracts linear; rays (5 to 8;. 

 pappus-paleae 9 to 12, those at the angle of the achene longer. 



•Sandy hills and fields near the ocean: San Francisco to Santa Barbara.. 

 July-Sept. 



2. E. confertiflorum (DC.) Gray. Stems 1% to 2 ft. high, often nn- 

 branehed, with a close dense (at length deciduous) tomentum; flowering 

 branches very leafy but the leaves small and ternately or pinnately parted into 

 3 to 7 narrowly linear divisions; heads 1% to 2 lines high, many in compact 

 terminal clusters; involucre obovoid-oblong, its bracts about 5, ovate; rays 4 or 

 '). 1% to 2 lines long; paleae 8 to 10, nearly equal, about % as long as the 

 achene. 



Hill and mountain summits of the Coast Eanges and south to Southern 

 California. June-July. Var. discoideum Greene, from Sonoma Co., is rayless. 



3. E. jepsonii Greene. Bushy, 2 ft. high; stems white with tomentum, 

 the leaves soon green or greenish; leaves pinnately divided into 5 to 7 narrowly 

 linear lobes; heads 3 to 4 lines high, peduncled in a loose corymb; involucre 

 broadly eampanulate-heniispherical, its bracts 6 to 8, ovate; rays elliptical or 

 oblong, 4 lines long, ovate; achenes hispidulous; pappus-paleae in two unequal 

 series, those of the inner set exceeding the outer. 



Mt. Hamilton Eange between Arroyo Mocho and Arroyo Valle. May. 



4. E. arachnoideum (F. & M.) Greene. Much branched, decumbent at 

 base, 1 ft. high or more; tomentum deciduous or becoming thin on the under 

 surface of the leaves; leaves broadish (at least some of them 1 in. broad), cleft 

 into 3 to 5 triangular or oblong lobes or variously incised or toothed ; involucre 

 hemispherical, its bracts oblong or oblong-ovate, acute; rays 10 to 13, 4 or 5 

 lines long; pappus-paleae short. — (E. caespitosum var. latifolium Gray.) 



Mountains towards the coast: Marin Co., south to Santa Cruz and north 

 to Humboldt Co. May-June. 



5. E. idoneum Jepson. Annual, branching from the base, 12 to 16 (or 30) 

 in. high, the herbage at first woolly, later deciduous and floccose; leaves mostly 

 basal, linear-spatulate or obovate in outline, laciniate or pinnatifid, green above, 

 the tomentum mostly persistent on the under surface; heads solitary on long 

 naked peduncles or the heads somewhat corymbosely clustered and the peduncles 

 shorter; involucre hemispherical, 3 or 4 lines high, its bracts broadly lanecolate, 

 appearing as if united or connivent by reason of the dense felt-like tomentum; 

 rays 9 to 12; ligules elliptic, 5 to 6 lines long, sharply notched at summit, with 

 a small tooth in the notch ; pappus-paleae about 9, very short. 



Vaca Mts. ; 2sapa Co. hills. May-June. 



6. E. lanatum (Pursh) Forbes var. grandiflorum (Gray) .Jepson. White- 

 woolly, the tomentum tardily deciduous, 1 or 2 ft. high; leaves ovate or obovate 

 in outline, pinnately divided into narrow toothed or pinnatifid segments; 

 peduncles long and naked; involucres broadly hemispherical (8 lines broad); 

 rays about 11, % in. long and over one-half as wide. 



