150 LEAFLETS. 



them in the uppermost, involucre about 4 lines long, 7 to 9- 

 flowered, bracts thin, whitish, 3-nerved, obtuse or abruptly 

 acutish : slender achenes minutely strigulose, pappus delicate, 

 merely scaberulous. 



Southward slopes of hills of the Black Range, New Mexico, 

 at about 6,000 feet, 0. B. Metcalfe, n. 1446. 



CoLBOSANTHUS MELissAEFOLiDS. Size and woodiness of C. 

 axillaris but more branching ; leaves firmer but green, ovate- 

 deltoid, all obtuse, lightly coarsely and unevenly crenate, the 

 upper face with few and scattered scabrous points and but an 

 obscure venation, underneath hispidulous-roughened on the 

 prominent but irregularly disposed and loosely anastromosing 

 veins and veinlets, the surface obscurely scaberulous and ob- 

 viously and rather strongly punctate : heads numerous on all 

 branches and branchlets, bracts of involucre 3-nerved, obtuse, 

 some mucronulate : achenes light-colored, appressed-pubescent ; 

 pappus delicate, scaberulous. 



Organ Mountains, N. Mex., at 4,900 feet, E. 0. Wooton, 1 

 Sept., 1897. 



Htmenopappus paevulus. Branches of caudex short, 

 stout, each bearing a tuft of small long-petioled leaves 3 inches 

 high, the petioles 2 inches, blade 1 inch, bipinnately cut into 

 narrowly linear segments, these firm, obtuse, hoary-tomentulose: 

 scapiform peduncles 6 or 8 inches high, ending in a contracted 

 cymose panicle of small heads ; involucres subturbinate, i inch 

 high, bracts cuneate-obovate, with obtuse scarious tips : achenes 

 slenderly turbinate, villous ; pappus of hyaline cuneate-obovate 

 nearly truncate short scales. 



Dry hills about Gunnison, Colorado, 17 July, 1901, C. F. 

 Baker, n. 449. 



Chbtsopsis aspbella. Slender rigid stems 1 foot high 

 closely tufted on a hard ligneous crown, sparsely villous-hirsute : 

 leaves thin, oblanceolate, 1 inch long exclusive of the short 

 petiole, both faces rough with a short strigose pubescence and 

 copious sessile pellucid glands : heads smallish, corymbose ; 



