204 ERYTHEA. 
arising from a subhemispherical tubercule formed from the 
substance of the stem and 1to 2mm. diam. Conidia ellip- 
tical, oblong or ovate, olive-brown, 1 to 3-septate, minutely 
granular-roughened, 15 to 30 x 8 to 12 yw terminal and 
lateral. 
Uromyces Coloradensis, E. & E. : 
On Astragalus or Spiesia, Fort Collins, Colo., June, 
1893, C. F. Baker, No. 118. 
ABcidium (Ze. porosum, Ph.?) evenly and thickly scattered 
over the lower face of the leaf which is somewhat swollen, 
erumpent, hemispherical at first, then open, 4 to ? mm. diam., 
margin spreading, lacerate-toothed, secidiospores globose, 
ovate and angular 15 to 22 x 12 to 15 y, deep orange yellow. 
Teleutospores, ovate, obovate, globose, angular or otherwise 
irregular, light chestnut color, smooth, epispore thickened at 
the apex and generally with a distinct papilla, forming 
minute (4 to # w), amphigenous, irregularly scattered sori 
nearly black while covered by the epidermis, chestnut color 
when exposed and bare. Pedicels fragile, hyaline, 30 to 40 y 
long. 
U. Astragali (Opiz.) has smaller, more regularly shaped 
spores and no Avcidiwm. 
Uromyces Gnaphalii, E. & E. 
On leaves of Gnaphalium sp., Fort Collins, Colo., Novy. 29, 
1892, C. F. Baker, No. 71. 
IIL. Sori scattered, hypophyllous, 1 mm. diam., naked, dark 
chestnut brown. Teleutospores globose or elliptical, smooth, 
strongly thickened at the apex, but not distinctly papillate, 
22 to 30 x 19 to 22 y, with granular contents. Pedicels 
hyaline, cylindrical, 80 to 100 x 4 to 5 y. 
Puccinia heterantha, E. & E. 
On Cénothera heterantha, Basin, Montana, July, 1892, 
Rev. F. D. Kelsey; Sheridan, Montana, Mrs. L. A. Fitch; on 
Oe. ovata, Berkeley, Calif., March, 1892, W. C. Blasdale. 
I. Acidia abundant, scattered over the entire leaf, epi- 
phyllous, though sometimes hypophyllous, short, 2 to 3 mm. 
