948 CARDUACEAE 



3. E. integrifolium (Hook.) Greene. Stems numerous, decumbent at the 

 base, 1-3 dm, high, finely tomentose; leaves linear-oblanceolate, closely tomen- 

 tose, 2-5 cm. long, entire or somewhat 3-lobed; involucres 6-8 mm. high and 

 broad; bracts 8-10, elliptic, mostly obtuse; ligules orange, 7-10 mm. long; 

 achenes hispidulous or slightly glandular above and on the margins. E. caespi- 

 tosum integnfolium A. Gray. Hills and mountain sides: Mont. Wyo. Ore. 

 Wash. Plain Submont. Je-Jl. 



4. E. multiflorum (Nutt.) Rydb. Stem rather stout, 3-4 dm. high, loosely 

 floccose; leaves pinnatifid, with lanceolate acute divisions, floccose; involucres 

 fully 1 cm. high and 1.5 cm. broad; bracts oblanceolate, acuminate; ligules about 

 1 cm. long, glabrous. Dry places: Ore. Mont. 



5. E. lanatum (Pursh) Forbes. Stem 3-5 dm. high, loosely floccose; leaves 

 more or less deeply pinnatifid, with oblong or linear, mostly obtuse divisions, 

 loosely floccose; involucres fully 1 cm. high, usually over 15 mm. broad; bracts 

 10-14, oblong-lanceolate, acute or obtuse; ligules 10-15 mm. long, orange. Hill- 

 sides and gravelly soil: B.C. Ida. Calif. Submont. My-Jl. 



6. E. Watsoni A. Gray. Stem 1-1.5 dm. high, white-tomentose, simple or 

 slightly branched; lower leaves cuneate-oblanceolate, about 1 cm. long, 3-5- 

 toothed at the apex, white-tomentose beneath, floccose above; stem-leaves 

 mostly pinnatifid, with linear divisions, 1-2 cm. long, re volute-margined; invo- 

 lucre hemispheric, 6 mm. high, 1 cm. broad or less; bracts 9-10, acute; ligules 

 bright yellow, 5-8 mm. long. Mountains: Ore. Ida. Nev. Submont. Mont. 



103. ANTHEROPEAS Rydb. DAISY DWARF. 



Low floccose annual herbs, branched at the base. Leaves alternate, spatu- 

 late to linear-spatulate, entire or 3-toothed. Heads radiate. Involucre cam- 

 panulate; bracts 5-9, elliptic, distinct or nearly so, concave and slightly en- 

 folding the ray-achenes; receptacle strongly convex or low-conic, obtuse, naked. 

 Ray-flowers 5-9, pistillate and fertile; ligules yellow, white, or tinged with rose 

 or purple. Disk-flowers hermaphrodite and fertile. Anthers with subulate tips. 

 Style-branches obtuse or with conic tips. Achenes elongate, narrow, 5-angled, 

 gradually tapering downward. Pappus of 6-12 opaque squamellae, either all 

 elliptic and obtuse or those of the angles linear-lanceolate and produced into an 

 awn-tip, or rarely wanting. 



Pappus squamellae all oval or obovate, obtuse; leaves broadly spatulate or obovate; 



ligules yellow or reddish. 1. A. Wallacei. 



Pappus squamellae of the angles narrow, lin ear-lanceolate or linear; leaves linear or 



nearly so; ligules white. 2. A. lanosum. 



1. A. Wallacei (A. Gray) Rydb. Stem 2-10 cm. high, diffusely branched, 

 densely floccose; leaves occasionally 2-3-toothed at the apex, 1 cm. long or less; 

 involucres about 4 mm. high, hemispheric; bracts oblong, obtuse; ligules broadly 

 obovate, 4 mm. long. Eriophyllum Wallacei A. Gray. Dry plains: Ariz. s Utah 

 s Calif. L. Son. Ap-Je. 



2. A. lanosum (A. Gray) Rydb. Stem 2-8 cm. high, floccose, or in age gla- 

 brate, branched; leaves floccose, 1 cm. long or less; heads campanulate, about 5 

 mm. high; bracts linear-elliptic, acute; ligules broadly obovate, truncate, 4 mm. 

 long. E. lanosum A. Gray. Dry plains: Ariz. s Utah Calif. L. Son. Mr-- 

 My. 



104. SYNTRICHOPAPPUS A. Gray. 



Low branched floccose annuals. Leaves alternate, from linear to spatulate, 

 entire or 3-lobed at the apex. Heads radiate, solitary at the ends of the branches. 

 Involucre campanulate; bracts 5-8, oblong, concave and partly enfolding the 

 ray-achenes; receptacle flat. Ray-flowers 5-8, pistillate and fertile; ligules yellow, 

 or purplish, rose, and white, oval, mostly 3-lobed at the summit. Disk-flowers 

 about 20, fertile. Anther-tips linear-lanceolate. Style-tips elongate-lanceolate, 

 flattened. Achenes linear, obpyramidal, 5-ribbed, hairy. Pappus-squamellae 

 dissected into numerous barbellate bristles united at the base into a wing, fall- 

 ing off together, or wanting. 



