e UTAH ACADEMY OF SCIENCES 187 
Witbeck’s Ranch, near Vernal, Uinta County; Bullion Can- 
yon near Marysvale, Piute County. 
12. Gymnosporangium Nelsoni Arthur. 
I. On Amelanchier mormonica C. K. Schneider: - 
Beaver Canyon, near Beaver, Beaver Co.; on Amelan- 
chier polycarpa Greene: Beaver Canyon above Beaver, 
Beaver County; on Ainelanchier alnifoliaNutt.: Fish 
Creek Canyon, western Sevier County; City Creek Canyon, 
Salt Lake County; on Peraphyllum ramosissimum 
Nutt.: Asays, Garfield County. 
Ill. On Juniperus scopulorum Sarg.: Mill D Flat, 
Big Cottonwood Canyon, Salt Lake County; Logan Canyon, 
Cache County; McGee Canyon near Santaquin, Utah Coun- 
ty; Maple Canyon Branch of Coal Creek Canyon, above 
Cedar City, Iron County; Parowan Main Canyon near 
Parowan, Iron County; on Juniperus utahensis (Eng- 
elm.) Lemmon: Price, Carbon County; Manti, Sanpete 
County; head Mammoth Creek above Panguitch Lake, | 
Garfield County; Maple Canyon branch of Coal Creek 
Canyon, above Cedar City, Iron County. 
This Gymnosporangium is probably present wher- 
ever its telial hosts are to be found. It is the most wide- 
spread cedar-apple of the State. 
13. Melampsora albertensis Arthur 
I. On Pseudotsuga mucronata (Raf.) Sudw.: Coal 
Creek Canyon, about 14 miles above Cedar City, Iron 
County. 
II. On Populus tremuloides Michx.: Abajo Mts., 
near West Mountain, San Juan County; Spring Hollow, 
Logan Canyon, Cache County. 
14, Melampsora Bigelowii Thum. 
I. On several species of Larix. Not yet reported from 
Utah. 
II, III. Reported from Utah on various species of 
Salix, but probably in many cases confused with the 
following species. All collections should ‘be carefully 
re-examined. 
15. Melampsora confluens (Pers.) Jackson 
I. On Grossularia inermis (Rydb.) Cov. & Britton: 
Gogorza, Summit County; Brighton Resort, Big Cotton- 
