CATALOGUE. 173 
altitude (808). This plant was found blooming higher and later than any 
other species in Arizona. From, the summit of Mount Graham, at 9,000 
feet, we have the variety ‘‘canescens, pube lanulosa decidua indutum” 
(Gray), some heads of which have the rays almost entirely wanting. 
(404.) For a recent arrangement of the genus by Professor Gray, see 
Proc. Amer. Acad. ix, p. 202 et seg. 
GAILLARDIA ARTSTATA, Pursh.—Perennial, 6’-2° high, pubescent (un- 
branched?); lower leaves linear-lanceolate, obspatulate or yinnatifid, on 
long-margined petioles, upper ones sessile and usually entire; heads 2-4’ 
in diameter; rays 1’ or more long, usually entire, yellow; pappus of the 
ray-flowers somewhat shorter than that of the disk; tube of the disk- 
flowers short, limb cylindrical, glandular-hairy above, and with the lobes 
bristle-tipped; scaly pappus lanceolate, one-quarter as long as the limb, 
midrib produced into an awn nearly as long as the disk-flower; achenia 
slightly hairy; bristles of the receptacle stout, 3-4 times as long as the 
achenia, thickened at the base.—Colorado, in South Park (483). 
GAILLARDIA PULCHELLA, Fougeroux.—Erect, branching, smooth; lower 
leaves petioled, lanceolate-spatulate, upper ones sessile, broadly lanceolate 
or oblong; peduncles 4-6’ long; scales of the involucre in two series (the 
inner shorter), tips much attenuated; rays orange-colored, cuneate, deeply 
three-lobed; disk-flower lobes purple, glandular-hairy, drawn out into a 
bristle tip; pappus (disk) with the scales broadly oblong and the midrib as 
long as the flowers; awns of the receptacle thickened and hardened at 
base, four times as long as the achenium, which is densely covered with fer- 
ruginous hair (or, as expressed by Torrey and Gray, “involucrate with a 
viilous ferruginous tuft”). This and the above species often closely resem- 
ble one another in the flowers. Indeed, in a specimen from the Laramie 
Mountains, named by Dr. Gray G. aristata, I find the hairy achenium much 
more like that of G. pulchella (which, from the unbranched stem and pin- 
natifid leaves), it can hardly be —Cottonwood, Arizona (345). 
AcCTINELLA ACAULIS, Nutt.—South Park, Colorado, at 12,000 feet ele- 
vation (457). 
ACTINELLA ARGENTEA, Gray (PI. Fendl. p. 100).—Stem at base, short, 
thick, woody, and branched almost as in A. acaulis and leafy; above slender, 
