108 



Mycologia 



184. Aecidium Allenii Clinton 



On Shepherdia canadensis Nutt. : 26860b, July 27, 1920, Coal Creek Canyon 

 branch of Cedar Canyon, Iron Co. 



187. Cronartium occidentale Hedge, Bethel & Hunt 



On Pinus edulis Engelm. : 2614a, June 27, 1920, mouth of Bullion Canyon, 

 near Marysvale, Piute Co. 2697, July 29, 1920, Parowan Main Canyon, Iron 

 Co. A number of infections were on the tree from which this collection was 

 made. 



On Ribes aureum Pursh : 2696, July 29, 1920, Parowan Main Canyon, Iron 

 Co. 2715, Aug. 3, 1920, Beaver, Beaver Co. 2724, Aug. 6, 1920, Hinckley, 

 Millard Co. 2726, Aug. 7, 1920, Fillmore, Millard Co. 27 30, Aug. 9, 1920, 

 Holden, Millard Co. 2732, August 9, 1920, Scipio, Millard Co. 2738, August 

 13, 1920, Oak City, Millard Co. 2748, Aug. 20, 1920, Lewiston, Cache Co. 

 2751, Aug. 22, 1920, Hyrum, Cache Co. This was beautiful uredineal material. 

 2760, Aug. 23, II, III, Mendon, Cache Co. 2763, II, III, Aug. 24, 1920, Mor- 

 gan, Morgan Co. The rust in III was also collected October 15, 1920, on 

 bushes along Current Creek, in DuChesne County, a half-mile from the Wa- 

 satch County line by Miss Ruby Harkness, a former student in botany in the 

 East High School, Salt Lake City. She reports that she found the Cronartium 

 on the first bush examined. 



On Ribes cereum Dougl. : 2714, August 3, 1920, Beaver Canyon, just below 

 Upper Telluride Plant, about twelve miles from Beaver, Beaver Co. (This 

 host is not considered sufficiently distinct from R. inebrians to warrant their 

 separation.) 



On Grossularia leptantha (A. Gray) Cov. & Britt. : 2713, Aug. 3, 1920, same 

 locality as No. 2714 given immediately above. A small tree of Pinus edulis 

 grew between the bushes. Not before reported for Utah on either of these 

 last two hosts. 



All of the above are new records for the distribution of the Cronartium 

 and the Peridermium. 



189. Gymnosporangium juvenescens Kern 



On Juniperus scopulorum Sargent: 2642, III, July 19, 1920, Cedar^Canyon 

 near Cedar City, Iron Co. 2698a, July 29, 1920, Parowan Main Canyon near 

 Parowan, Iron Co. 2640, July 17, 1920, Maple Canyon branch Cedar Canyon, 

 about five miles from Cedar City, Iron Co. 2699, July 29, 1920, Parowan Main 

 Canyon, near Parowan, Iron Co. 



On Amelanchier oreophila A. Nels. : 2618, I, June 28, 1920, Bullion Canyon, 

 near Marysvale, Piute Co. 



192. Peridermium coloradense (Dietel) Arthur & Kern 



On Picea Engelmanni (Parry) Engelm.: 2661, July 9, 1920, Coal Creek 

 branch Cedar Canyon, about fourteen miles from Cedar City. The aecia were 

 just beginning to develop at this date. Many trees were affected. 



