316 DESCRIPTIONS OF NEW SPECIES 



the outer chaffy crown, is, however, very short, and best seen in an early stage 

 of growth. 



Chrysopsis hispida. {Diplopappus hispidus, Hook. Flor. Bor. Am., Vol. II., 

 p. 22.) In this species, so much allied to C. villosa, there are numerous aro- 

 matic, resinous glands spread over most part of the plant; the quantity of this 

 resinous matter, however, varies, but is never wholly wanting. The involu- 

 crum is rarely at all smooth, more or less slenderly pilose, and sometimes glan- 

 dular. Perennial, often somewhat decumbent, six to eight inches high, fasti- 

 giately branched ; the rays deep yellow, pappus brownish, scabrous. Radical 

 leaves spathulate, long petiolate. Achenium silky. Outer short pappus chaffy, 

 white, very distinct.' — In C. villosa the outer pappus is far less distinct, and 

 much more slender than in the present plant. 



Chrysopsis *foliosa; %, sericeously villous, and more or less canescent, the 

 margin and lower surface of the leaves scabrous ; flowers fastigiate, corymbose ; 

 leaves entire, oblong or oblong-ovate, subamplexicaule, crowded, acute, ciliate 

 below; scales of the involucrum linear, acute, villous; achenium silky; pappus 

 scarcely scabrous, outer pappus slender, dimidiate. 



Hab. In the Eocky Mountain plains, near the banks of the Platte. Flowering in August. 

 About a foot high, sending up many hairy stems from the same root. Nearly allied to C. villosa, 

 but far more pubescent and hoary, with the leaves widest at the base. In some specimens quite 

 hoary, the hairs feel as soft as silk, but on removing this clothing, the under surface is covered 

 with numerous scabrous elevations. A very showy species. 



Chrysopsis *9nolUs, %; sericeously villous, leaves entire, spathulate-oblong, 

 the lower narrowed below, the rest oblong and sessile, mostly obtuse; corymb 

 few-flowered; involucrum villous; the scales lanceolate, acute; achenium silky, 

 the outer pappus minute. 



Hab. With the above, which it much resembles, but the leaves are more oblong, not in the least 

 scabrous nor any where ciliate ; the stem, also, softly villous. 



%1. Subgenus. *PHYLLOPAPPus.t Receptacle alveolate. Involucrum, sepals in 

 about two series, suhequal, flat. Outer pappus of about twenty paleaceous, 

 linear-lanceolate, eroded scales, the inner of about twenty-five scabrous setcB. 

 Annual, with the lower leaves incisely serrate. 



t From the exterior pappus being leaf-like. 



