Nelson : New Plants from Wyoming 233 



very leafy, densely but finely glandular, the leafy bracts hispid- 

 ciliate on the margins; heads few (3-10), rather large, panicu- 

 lately-corymbose : involucre broadly campanulate, 1 cm. high, 

 green, granular-resinous, ciliate-pubescent ; bracts linear-acute, in 

 3-4 rows, the inner equalling the disk : rays 20 (more or less), 

 deep yellow or orange colored, 8—12 mm. long: pappus dingy, 

 the outer series distinct, of short, narrow scabrous-margined paleae. 



The nearest ally of this species seems to be C. viscida (Gray) 

 Greene, which has a more southwesterly range. That differs 

 from the species now proposed in its strongly decumbent, rigid 

 stems, its smaller size, smaller and fewer leaves, and open, 

 branched inflorescence. In many respects C. resinolens is nearer 

 C. fulcrata Greene from which, however, a comparison of speci- 

 mens shows it to be amply distinct. 



Collected on open slopes in the foothills of Laramie Peak, 

 Albany Co., July 13, 1900. The type number is 7583. 



y 



Chrysopsis resinolens ciliata 



Smaller than the species, the stems more numerous and 

 crowded on the crown ; leaves nearly glabrous on the faces but 

 conspicuously ciliate margined, closely and minutely glandular- 

 dotted ; heads fewer, closely crowded and subtended by leafy 

 bracts : rays broader and fewer : the outer pappus shorter and of 



fewer paleae. 



Collected on sandy river banks, Dunn's Ranch, Albany Co., 



July 16, 1900, no. 7560. 



* Machaeranthera ramosa 



Perennial from rather deep-set woody roots : stems several to 

 numerous, prostrate-spreading or somewhat assurgent, each freely 

 branched (often intricately so) throughout, 3-4 dm. long, the 

 whole plant forming a conspicuous mat from .5 m. to nearly 1 

 m. across, stems and slender branchlets green with a fine puberu- 

 lence : leaves green, nearly glabrous ; the radical and cauline 

 entire or irregularly denticulate, broadly linear or linear-spatulate, 

 3-5 cm. long, often wanting at anthesis ; the rameal numerous, 

 small, linear, entire or nearly so, often somewhat fascicled : heads 

 numerous, terminating the branchlets ; involucres broad, sub- 

 hemispherical, the lanceolate bracts in 5 or 6 series and rather 

 loosely imbricated, the green, acuminate tips at length reflexed, 

 distinctly glandular-viscid (the peduncular branchlets only slightly 

 so) : rays 20 (more or less), purple : akenes compressed, greenish, 

 thinly and finely pubescent. 



