VOL. III.] 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 exparided 

 head, which is hemispherical in fruit, not surpassing the disk flowers, 

 obtuse; heads an inch broad and y^ an inch high, nodding in fruit 

 usually; flowers nearly golden yellow; rays about 20, 2 inches long, 

 and ^2 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-cvlindric, 3 lines long, 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 parsely 

 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 I 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 niidicaulis ?iX^ 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. 



^ Tetradvmia 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 

 dignified with the name of spines. In T. Nnitalh'iT. & G. the spines 

 persist till the second year and then fall. 



