COMPOSITE. 445 



leaves, the uppermost linear, eutire: pechiucles often much elongated: 

 involucres broadly campanulate, of 12 — 15 bracts: acheues glabrous or 

 sparingly glandular; pappus very short and inconspicuous, the larger 

 paleae obtuse, the alternate ones minute. — Both sides of the Sierra 

 Nevada, but northward only, in Butte, Plumas and Sierra counties. 

 Possibly distinct from the original plant of Pursh, Nuttall and others, 

 but certainly far removed from the E. crspitosum of Douglas, nothing 

 like which is found in any part of California. 



■^ ■•— Heads middle-sized, usually somewhat corymbosely clustered at sum- 

 mit of leafy stems. 



10. E. arachnoideum, Greene, Man. 207 (1894); F. & L. Ind. Sem. 

 Petr. ix. 63 (1842), under Bahia. Loosely branching from a decumbent 

 base, 1 — 2 ft. high, clothed with long floccose wool : leaves broad, from 

 rhombic or cuneate in outline to oblong-lanceolate, thinnish, 3— 5-lobed 

 or -incised, the lobes or coarse teeth triangular or oblong: involucre 

 hemispherical, 3—4 lines high: rays 10 — 13, large; disk-corollas with 

 very glandular-hirsute tube: achenes short, thickish: pappus-palese 

 short. — In the redwood districts of the coast. June — Oct. 



11. E. acliillaioides, Greene, 1. c; DC. Prodr. v. 657 (1836), under 

 Bahia. Leaves mostly basal, opposite, pinnately parted into 3—5 divi- 

 sions, these incised or pinnatifid: heads somewhat corymbosely collected 

 and short-peduncled; involucres hemispherical, the bracts and rays 

 9 — 13; pappus as in the last.— Dry hills of the inner Coast Eange. 

 June — Sept. 



12. E. taiiacetiflonim, Greene, Pittonia, ii. 21 (1889). Erect, slender, 

 2 ft. high, leafy throughout: leaves opposite, thinnish, sparingly floccose 

 beneath, from palmately trifid to somewhat pinnatifid: heads 3 — 7, 

 nearly or quite sessile at the summit of the simple stem; involucre oval, 

 2 lines high, the bracts broad and nearly equal, acutish; rays none; 

 achenes with a few closely appressed hairs and no resin-glands; pappus 

 of about 8 unequal linear obtuse or retuse palese. — Wooded hills of 

 Calaveras County, between Sheep Ranch and Murphy's, Greene. June, 

 July. 



* * * Smaller species, all annual; pappus ohsolete in some. 



13. E. Heermanni. Monolopia Heermanni, Durand. PI. Pratt. 93 

 (1855). Rather diffusely branched from the base, somewhat decumbent, 

 6—10 in. high, deciduously flocculent: leaves small, alternate, mostly 

 pinnately parted into 5 short linear segments, the uppermost entire: 

 heads small, on slender peduncles terminating the branchlets: involucre 



