498 CocKERELL: NorTH AMERICAN SPECIES OF HYMENOXYS 
dark ferruginous, about two thirds length of disc-corolla, very 
broad at base, with more or less of a lobe on each side, and with a 
rather long linear apical portion, so that they might be called short- 
aristate: disc-corollas quite glandular. (PLATE 22, FIGURE 2.) 
I have before me five sheets of this plant; two represent vo. 
633 of the Emory Survey, said to be (¢. ¢., the whole collection) 
chiefly from ‘the valley of the Rio Grande, below Donia Ana,” 
New Mexico; one is Wright’s 7260, of his New Mexico collection 
’ of 1851-52; two were collected by Miss A. Isabel Mulford, xo. 
807, “ Hanover Hills, 8, 9, 95,” and 809, “Santa Rita, 8, 9, 95," 
both places in New Mexico. The latter specimen is only in bud. 
One of the Wright specimens has entangled among its basal leaves 
a small leaf of Quercus, apparently Q. Emoryi, which indicates the 
sort of place the plant inhabits. 
It takes the whole series to get the best idea of the true char- 
acteristics of this plant, but I take as the type Miss Mulford’s 807, 
in Dr. Greene’s herbarium, for the reason that it is the only one 
in flower with a precise locality given. 
H1. olivacea has a decided resemblance to A. sudintegra, but 
that is a pale, decidedly canescent plant, with broader, more lobed 
cauline leaves and larger heads. The peduncles also are stiff; in 
H1, olivacea they are more or less flexuous. 
' Hymenoxys latissima sp. nov. 
Plant doubtless tall, but only tops seen; stem slender, light 
yellowish, strongly grooved, more or less beset with loose white 
hairs, especially about the bases of the leaves: cauline leaves alter- 
nate, sessile, pale yellowish green, elongate-oval, entire, pointed at 
the apex, strongly punctate, not obviously nerved, glabrous except 
for scattered white hairs forming a sort of loose and scanty arach- 
noid pubescence on both surfaces; length of leaf about 30 mm., 
breadth little over 13, uppermost leaves smaller: heads hemis- 
pherical, the surface very convex, about 19 mm. broad excluding 
rays, on long and slender but apparently rigid peduncles; rays 
large and conspicuous, yellow (probably inclining to orange), OV 
20 mm. long, and fairly broad; base of head very woolly ; outer . 
bracts green, rather narrow, not united to middle ; inner with long 
pointed tips and straight sides, not fimbriate ; receptacle large, 
high-conical, rounded at apex: achenes narrow, yellowish-ferru- 
ginous, with white hairs not concealing the body-color: disc- 
corollas rather broadened to the apex : pappus-scales white, nearly 
