UTAH ACADEMY OF SCIENCES 189 
County. On Vaccinium sp., Strawberry Valley, Uinta 
County. 
21. Pucciniastrum pustulatum (Pers.) Dietel 
I. On leaves of Abies. Not yet reported from Utah. 
Il, III. On Epilobium adenocaulonHaussk.: Red 
Butte Canyon, Salt Lake County; Upper Falls, Provo Can- 
yon, Utah County; Fish Creek Canyon, Sevier County; on 
Epilobium anagallidifolium Lam.: Silver Lake, Big 
Cottonwood Canyon, Salt Lake County; on Bpilobium 
Drummondii Haussk.: near Silver Lake, Big Cottonwood 
Canyon, Salt Lake County. On Kpilobium brevistylum 
Barbey: Silver Lake, Big Cottonwood Canyon, Salt Lake 
County; on Epilobium stramineum Witbeck’s Ranch, 
near Vernal, Uinta County. 
22. Pucciniastrum pyrole (Pers.) Dietel 
I. Unknown; to be looked for on leaves of Picea 
Abies and Tsuga. 
II, III. On Pyrola uliginosa Torr.: Red Butte Can- 
yon, Salt Lake County; on Pyrola secunda {,,; Silver 
Lake, Big Cottonwood Canyon, Salt Lake County. 
Among the Ascomycetes, or sac-fungi, perhaps the 
most conspicuous is the black knot on wild choke cherries, 
etc., caused by Plowrightia morbosa. 
Among the Fungi Imperfecti there are a great many 
leaf-spots attacking the leaves of the trees, in some cases 
doing serious damage. For several years one of these 
leaf-spots has seriously affected the leaves of the culti- 
vated horse-chestnuts in Salt Lake City. Another (Septo- 
ria negundinis Ellis & Everh.) was so bad on the leaves 
of the box-elders in front of the entrance to the Wiley 
Camp at Zion National Park, Washington County, that 
every leaf seemed to be diseased. It was said at the 
Park that the leaves “had been frosted’’! 
Little can be done toward developing an effective 
program of forest conservation until the occurrence and 
distribution of the plant diseases in the State are definitely 
known. More attention should be given to this phase of 
the subject, which offers so much in the way of discovery 
to the individual who would follow it, and still so much 
more in the way of increased forest yields to the genera- 
tions to come. 
