NEW OR NOTEWORTHY SPECIES. 155 
lanceolate and sessile, incisely serrate: involucres hemi- 
spherical or subglobose, 1 to $ inch broad, the numerous 
and strongly imbricated braets with long slender more or 
less squarrose green tips: rays numerous, long and showy, 
of a golden-yellow: achenes all turgid and turgidly ribbed, 
those of the ray trigonous, of the disk somewhat com- 
pressed and 2-edged: bristles of the pappus 3 in the ray, 2 
in the disk, all short, slender for the genus, glabrous. 
Chama, New Mexico, 5 Sept., 1899, C. F. Baker. 
" ERIGERON ACCEDENS. Habit of E. divergens, rather larger, 
commonly more than a foot high, cinereously hirsutulous: 
basal leaves of broadly oblanceolate outline, abruptly and 
cuspidately acutish, mostly with 2 or 3 pairs of coarse teeth 
or shallow lobes, but some with only 1 or 2 such teeth, a 
few quite entire, all tapering to a slender petiole twice the 
length of the blade; the proper cauline and rameal ones 
spatulate-linear, entire, sessile: heads subcorymbose, the 
peduncles well elongated: bracts of the low-bemispherical 
involuere hirsute, subequal in several series, linear, acumi- 
nate: rays 125 or more, very narrow, pale violet: pappus 
of rather few and very delicate bristles and a number of 
subulate minute squamelle. 
Collected at Clifton, Arizona, April, 1899, by Dr. A. David- 
son. Evidently a more showy species than its near ally, 
E. divergens, from which its pinnately toothed and long- 
petiolate foliage as well as larger heads render it easily 
distinguishable. 
; ERIGERON PURPURATUS. Related to E. compositus, simi- 
larly cespitose though more loosely, and the monocepha- 
lous peduncles scapiform, but leaves narrowly oblanceolate 
and entire, except a few of the earliest which are obovate- 
dilated at summit and 3-toothed or 3-lobed, all sparsely 
pilose, the largest 1} inches long, including the long 
narrow petiolar basal part: peduncles 2 or 3 inches high, 
