148 LEAFLETS. 



Machabkanthera cichoriacea. Annual, stoutish, 2 feet 

 high, the stems flexuous aboye and somewhat f astigiately race- 

 mose-panicled and, with the branches, glandular-scabrous or 

 hispidulous; leaves pale green, glabrous, glaucous, the larger lan- 

 ceolate, sessile, 3 inches long, sparsely runcinate-dentate, those 

 of the flowering branches, small, entire, often recurved : involu- 

 cres of less than middle size, turbinate, closely imbricate, the 

 dark green viscid bracts erect : rays few, rather short : ovaries 

 loosely silky-villous. 



Bottom of caQon at Deer Run, southern Colorado, 35 Aiig., 

 1901, C. F. Baker, n. 918. 



Machabeanthera spectabilis. Low, bushy, the many 

 subcorymbose stems some 10 inches high from a biennial or 

 perennial root: lowest leaves narrowly oblanceolate, acute, 

 tapering to a short strongly ciliate petiole, the, upper sessile and 

 with a few spinulose teeth, all obscurely pubescent : involucres 

 i inch high or more, campanulate, their many and much imbri- 

 cated bracts purple, the attenuate tips viscid, spreading or 

 recurved : rays very many, deep violet, showy : achenes nearly 

 or quite glabrous. 



Clayey banks at Marshall Pass, southern Colorado, 20 Aug., 

 1901, C. F. Baker, n. 873. 



Pbctis taxifolia. Suffrutescent, 5 or 6 inches high, the 

 leafy flowering branches and their foliage of a vivid gi-een and 

 delicately scaberulous : leaves rather fleshy, about J inch long, 

 entire, pungently acute, dotted with two rows of very large 

 glands : peduncles slender, naked ; heads turbinate-campanul&te, 

 nearly i inch high, many-flowered ; bracts very firm, lande-lin- 

 ear, acute, their margins scaberulous ; rays 6 or 8, large and 

 showy : achenes hispid ; pappus fuscous, of many unequal scab- 

 rous bristles. 



Black Range, New Mexico, 1904, 0. B. Metcalfe, n. 1440. 



Helianthblla majuscula. Stout, erect, 2 feet high, 

 monocephalous, sparsely rough-hirsute with short hairs : leaves 

 in about 4 pairs, the lower and middle broadly lanceolate, '5 or 

 6 inches long, subsessile, acute at each end, lightly and remotely 



