54 PITTONIA. 
Frequent from Middle and North Parks in the mountains 
of Colorado, to Montana and westward into Utah. "The de- 
scription is drawn from my own specimens obtained at vari- 
ous times near Laramie, Wyoming. Mr. Watson's n. 551, 
from Parley's Park, Utah, July, 1869, is of this species, 
according to the sheet retained in the U.S. Herbarium, where 
also is a sheet collected by Marcus Jones, at Cottrell’s Ranch, 
Utah, 21 July, 1894. 
G.LoNGIFOLIA. Shrubby at base, the leafy and floriferous 
branches of the season nearly two feet high; older stems 
terete, the newer striate and somewhat angled, devoid of 
even a scabrous pubescence, or nearly so: leaves linear, 2 
inches long or more, 1-nerved: heads sessile and glomerate 
at the ends of fastigiate branchlets and forming a broad 
nearly flat-topped inflorescence; involucres elongated, obo- 
vate-turbinate, 23 lines high, their bracts long, with thick 
short green tips: flowers of ray and disk each 4 or 5; pappus- 
pales: of about the same number, mostly lanceolate, those of 
the ray shorter. 
Collected in the White Mountains of New Mexico, Aug., 
1897, by Mr. E. O. Wooton, and distributed as G. micro- 
cephala (n. 377 of my set). The heads are notably long, nar- 
row and few-flowered ; but the plant is very large, perhaps 
the largest of its genus, and very unlike all others in aspect, 
its long foliage giving it much the appearance of Gymno- 
sperma corymbosum. 
G. GLOMERELLA. Tufted stems 2 feet high, not slender, 
fastigiately corymbose, the branches of the season striate, 
glabrous; narrowly linear leaves ascending, scaberulous, 
punetate, the ultimate twigs of the inflorescence and the in- 
volucres very glutinous, the latter mostly sessile in glom- 
erules of 3 to 5, nearly cylindrie, with only 1 ray and 1 
disk-flower, the bracts few, obtuse, scarcely green-tipped ; 
the ray-flower half-enfolded by its involucral bract. 
