98 | PITTONIA. 
New or Norewortuy SpkciEs.—X XVI. 
Wiru Pram XI. 
CHAENACTIS PEDICULARIA. Low subalpine perennial, with 
many decumbent leafy stems 5 to 8 inches high from a 
branching rootstock, and no rosulate tufts of basal leaves: 
stoutish stems and younger foliage canescently tomentulose : 
leaves rather short, on long flattened petioles, once or twice 
pinnately parted into rather crowded, divaricate or retrorse 
segments all obtuse: heads large, nearly an inch high, short- 
peduneled, solitary at the ends of the few branches: flowers 
whitish : pappus-pales about 6, shorter than the corolla but 
not of very unequal length, 4 linear-oblong, 2 narrowly 
linear and somewhat shorter. 
Mountains of southern Colorado, at 11,000 ft., above La 
Plata, Baker, Earle and Tracy, 16 July, 1898, n. 536. A 
perennial species, of the group hitherto represented only by 
the two annual species, C. macrantha and C. Xantiana. 
MACHARANTHERA VARIANS. Biennial or short-lived 
perennial, the solitary or few stems erect from the base, 
commonly a yard high, simple and leafy up to the corym- 
bose or somewhat panicled summit, from nearly glabrous 
below to glandular-puberulent, the upper portion and the 
branches glandular-hispidulous or hispid: leaves linear- 
lanceolate, usually 3 or 4 inches long, sessile, varying from 
entire to more or less regularly spinulose-toothed, mostly 
glabrous on both faces but marginally glandular-pubescent 
or ciliate: heads numerous, large and showy with many 
purple rays; bracts of the hemispherical or subcampanulate 
involucre in 4 or 5 series, all with long linear-subulate 
spreading glandular-viscid. herbaceous tips: oblong-linear 
achenes nearly glabrous, hardly striate. 
