Bulletin University of New Mexico—No. 49 
teeth hardly at all bristle-tipped; rays bright 
violet. 
A. BIGELovU, Gray. A foot or two high, robust, 
stem leafy, branching above, rough-hirsute to glabrate ; 
the flowering branches or peduncles glandular, hirsute, 
terminated by large showy heads; leaves oblong or 
lanceolate, irregularly dentate; radical lanceolate-spa- 
tulate; cauline oblons to lanceolate, usually with broad- 
ish partly clasping base; rays very many, an inch or less 
long. In the valley near Atrisco. 
**Ivolucre from nearly glabrous to glandular- 
puberulent, but not hispidulous, achenes nar- 
row, densely canescent ; leaves generally with 
bristle teeth. 
A. CANESCENS, Pursh. A foot or two high and 
loosely much branched, numerous heads in a panicle, 
canescent or glabrate; leaves lanceolate to linear or the 
lower spatulate, from entire to irregularly dentate or 
occasionally laciniate; bracts of involucre rigid, well 
imbricated ; rays violet, 1-3 to 1-2 in. long. 
12. rEriaeRoN, L. Flebane. Daisy. . 
Herbs with entire or toothed and generally sessile 
leaves, heads solitary or corymbed, yellow disk, white 
or purple, very numerous and slender rays, flat or con- 
vex naked receptacle; flattened, usually pubescent, and 
2-nerved achenes. 
Perennials 
From a rootstock, leaves entire, pappus double; 
A foot or two high, exterior pappus 
minute, - - - 5. MACRANTHUS. 
Low, exterior pappus, plain, seen as_ scales, 
aye 40 to 50, arenes branched, 
- - E. BIGELOVII. 
Have 50 te to 80 Bae lacking sparingly 
branched, - -  E, CONCINNUS. 
From rosulute offsets aris on apex of creeping 
rootstocks, leaves serrate pappus quite simple, 
- E. PHILADELPHICUS. 
Annuals or sometimes biennials 
Rays very numerous (about 100), nar- 
row- - - - - E. DIVERGENS. 
Rays not as numerous nor narrow, E. STRIGOSUS. 
E. MACRANTHUS, Nutt. Leafy stemmed, from hir- 
sute pubescent to nearly glabrous; leaves rather large 
but upper small, from lanceolate to ovate, entire; in- 
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