SUNFLOWER FAMILY. 



523 



broad. Tube of disk-corolla commonly glandular and hairy. Acbenes 

 linear or cuneate-linear. Pappus of firm pointless palea?. (Greek 

 erion, wool, and phullon, leaf, the herbage woolly.) 



Suffruticose; heads small except no. 3. 

 Heads in close terminal clusters ; involucres obovoid to oblong. 



Rays 6 to 8 1. E. staechadifotium. 



Rays 4 or 5 2. E. conftrtiflorum. 



Heads peduncled in a loose corymb; involucres campanulate-hemispher- 



ical; rays 6 to 8 3. E. Jepaonii. 



Herbaceous; heads larger, scattered on rather long peduncles; involucres 

 hemispherical. 



Leaves broadish; coast species 4. E. arachnoideuin. 



Leaves narrower; interior species. 



Annual 5. E. idoneum. 



Perennial: var. grandiflorum of 6. E. lanatum. 



1. E. staechadifolium Lag. Lizard Tail. Two 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 felt-like tomentum; upper surface of leaves green 

 and the tomentum of the stems deciduous; heads 4 or 5 lines high, 

 disposed in close compact corymbs; involucres broadly oblong or 

 somewhat turbinate, bracts linear; rays 6 to 8; pappus-paleae 9 to 12, 

 those at the angle of the achene longer. 



Sandy hills and fields near the ocean. July-Sept. 



2. E. confertiflorum (DC.) Gray. Stems 1£ to 2 ft. high, often 

 unbranched, with a close dense (at length deciduous) tomentum; flower- 

 ing branches very leafy but the leaves small and ternately or pin- 

 nately 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 5, H to 2 lines long; 

 palete 8 to 10, nearly equal, about £ as long as the achene. 



Hill and mountain summits of the Coast Range3. June-July. 

 Greene's var. discoideum 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 campanulate-hemispherical, its 

 bracts 6 to 8, ovate; rays elliptical or oblong, 4 lines long, ovate; 

 achenes hispidulous; pappus-palese in two unequal series, those of the 

 inner set exceeding the outer. 



Mountains between Arroyo Mocho and Arroyo Valle south of 

 Livermore. May. 



4. E. arachnoideum (F. & M.) Greene. Much branched, de- 

 cumbent at base, 1 ft. hign or more; tomentum deciduous or becom- 

 ing 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-palea? short. 



Mountains towards the coast: Marin Co. May-June. 



