THISTLE FAMILY 947 



11. C. Douglasii (Hook.) H. & A. Stem 2-5 dm. high, sparingly floccose, 

 in age glabrate, glandular-puberulent in the inflorescence; leaves bipinnatifid 

 with numerous short, crowded, obtuse lobes^ more or less floccose; heads panicu- 

 late; involucres 10-13 mm. high, 15-20 mm. broad; bracts hnear, obtuse, glandu- 

 lar-puberulent; pappus-squamellae oblong or Unear, obtuse, about 5 mm. long. 

 Sandy and rocky places: Alta. — N.M. — Calif. — B.C. Plain— Mont. Je-Jl. 



12. C. pedicularia Greene. Stem leafy, 1-2 dm. high, decumbent; leaves 

 twice pinnatifid, with short obtuse lobes, sparingly tomentulose when young; 

 peduncles 1-2 cm. long; involucres about 15 mm. high and broad; bracts tomen- 

 tulose, scarcely at all glandular, acutish; pappus-squamellae linear-oblong to 

 linear, obtuse. High mountains: Colo. Alp. Jl. 



13. C. minuscula Greene. Scape 1-3 cm. high; leaves crowded, 2-3 cm. 

 long, lanceolate in outline, with short entire or toothed divisions, nearly gla- 

 brous; involucres 1 cm. high and broad; bracts Unear, acute or the inner acmn- 

 inate, finely glandular-puberulent; corollas white, 6 mm. long; squamellae oblong, 

 obtuse, 3 mm. long. Mountain tops: Ida. Alp. 



14. C. alpina (A. Gray) M. E. Jones. Stem 1 dm. high or less, subscapose; 

 leaves mostly basal, twice pinnately dissected, with short obtuse lobes, somewhat 

 tomentose when young; peduncles 2-7 cm. long, glandular-puberulent; involucres 

 8-12 mm. high, 10-15 mm. broad; bracts linear, obtuse, usually purple; corollas 

 flesh-colored, all alike; pappus-squamellae linear-oblanceolate or hnear-spatu- 

 latc, obtuse, 4-5 mm. long. C. rubella Greene. High mountains— Colo.— Calif . 

 — <)re. MonL — Alp, Jl-Au. 



15. C. Evermannii Greene. Scape 1-3 cm. long, floccose; leaves 1-2 cm. 

 long 3-5-toothed or 3-5-lobed above the middle, loosely floccose; involucres 

 6-8 mm. high and broad, puberulent; bracts linear-spatulate, rounded at the 

 apex; corollas flesh-colored or white, 5 mm. long; squamellae 8, unequal, oblong, 

 obtuse, the longer 4r-5 mm. long. Mountain tops: Ida. Alp. 



102. ERIOPHYLLUM Lag. Woolly Yellow^ Daisy. 



Annual or perennial (in ours with a cespitose caudex), floccose or tomentose 

 herbs or low shrubs. Leaves alternate, entire or pinnately lobed or dissected. 

 Heads radiate, rarely discoid. Involucre hemispheric; bracts m a smgle series 

 or in 2 equal series, somewhat overlapping, concave or somewhat boat-shaped, 

 partly enveloping the marginal achenes; receptacle usually more or less convex, 

 naked Ray-flowers pistillate and fertile; ligules yellow, oblong. Disk-flowers 

 usually numerous, hermaphrodite and fertile. Achenes 4-5-angled, narrowly 

 elongate-obpyramidal, glabrous, hirsute, or glandular. Pappus of 4-12 hyaline, 

 often erose squamellae, or rarely wanting. 



Leaves oblanceolate or obovate. ^- ^- tntegnjonum. 



4. E. multiflorum. 



less 

 Achenes glabrous. 



Bracts acuminate, ^^i^^v^^^^^o v ^ — - n jp in-nniu^ 



Bracts abruptly acute, not surpassing the disk. 5. |. ^«?^«^^^.- 



Achenes hairy. 



.m Heller. Stems several, sim 



below sparingly -tomentose; leaves oblong-lanceolate, subsessile, 3-5 cm. long, 

 1 c^VK eitire, acute, floccose on both sides; peduncles 5-15 cm long; mvo- 



lisoiles 



, ~ um; 



Dry open places : Ida. Plain. Jl. 



2 E ffracUe (H. & A.) A. Gray. Stems several, 2-3 dm. high; leaves nar- 

 rowly Unear or narrowly linear-oblanceolate, 3-5 cm. long, loosely floccose; mvo- 

 Wes 7-8 mm. high and about as broad; bracts about 10, oblong, acutish; rays 

 7-8 mm. long; achenes densely glandular-granuliferous. Gravelly places: Wash. 

 —Ida. Plain— Suhmont. Je-Jl. 



