VOL. 111. ] Contributions to Western Botany. 305 
like the leaves or softly tomentose in pubescence, in several series, 
not recurved, widely spreading in fruit because of the expanded 
head, which is hemispherical in fruit, not surpassing the disk flowers, 
obtuse; heads an inch broad and ¥% an inch high, nodding in fruit 
usually; flowers nearly golden yellow; rays about 20, 2 inches long, 
and % inch wide or smaller, narrowly elliptical, minutely 5 toothed 
at the apex, neutral, usually with two loblets, one near the base of 
the ligule, and the other near the base of the blade; these lobelets 
are 3 to 8 lines long, and either green or yellowish; disk flowers 
urceolate-cylindric, 3 lineslong, a line wide; proper tube a line long, 
very narrow, glandular; lobes reflexed, short, and hispid at tip; 
style tips bluntly triangular; ovaries nearly linear and slightly 
widened at tip, white silky with chaff-like hairs; margin hyaline and 
very hairy; apex with two scale-like awns equaling the short tube; 
ovaries 4 lines long exclusive of the awn, and flat; mature akenes 
obovate cuneate, and truncate to narrowly cuneate, black, with 
white callus margin, which is long villous; body of akene sparsely 
hairy; pappus awns present or absent; crown entire or lacerate, % 
a line high or almost wanting. The leaves are thick and the whole 
plant so nearly simulates Balsamorhiza sagittata that | have no 
doubt it is quite common where that plant has been supposed to be 
abundant. It is sometimes found growing near it also. It abounds 
in Western Utah and Eastern Nevada on sunny and dry hillsides, 
on the southern slopes, in bare places, from 6,000 feet altitude down. 
It is abundant at Detroit, Dugway, and Gold Hill, Western Utah, and 
at Furber, Glencoe, etc., in Eastern Nevada, and doubtless abounds 
throughout Nevada and Southern Utah. My large and varied mate- 
rial and my field studies make it certain that the two species argo- 
phylla and nuticaulis are identical, and the older name must prevail. 
BALSAMORHIZA SAGITTATA Hooker. The horses seem to like 
the leaves, as I noticed my animals eating it with evident relish. It 
is frequent throughout the Great Basin region. : 
TETRADYMIA GLABRATA Gray. The spines of all the species arise 
from the bark. In this, the ‘‘spineless’’ species, they are present 
and formed like the other spiny species, but they are so weak and 
narrow the same year they are formed that they are called spine- 
tipped leaves, and as they fall at the end of the season they are not 
dignitied with the name of spines. In 7: MuttalliiT. & G. the spines 
persist till the second year and then fall. 
