JACKSON: UREDINALES OF OREGON 205 
ON PINACEAE: I. 
Altes grandis Lindl.—Scottsburg, Lane Co., Sept. I, 1914, G. G. 
Hedgecock, 20270. 
Abies magnifica A. Murr.—Road to Crater Lake, Union Creek, 
Camp Grant, Klamath Co., Sept. 23, 1913, E. P. Meinecke, Cr D 20. 
ON VACCINIACEAE: IIT. 
Vaccinium macrophyllum (Hook.) Piper—Austin, Grant Co., June, 
1913, J. R. Weir, 25; Sumpter, Baker Co., June, 1913, J. R. Weir, 24; 
Silver Creek, Josephine Co., July 28, 1913, E. P. Meinecke, Sz (D6) Dr. 
Vaccinium myrtilloides S. Wats.—Road to Crater Lake, Union 
Creek to Camp Grant, Klamath-Co., Sept. 23, 1913, E. P. Meinecke, 
CD) To: 
Vaccinium ovalifolium Smith—Larch Mt., Multnomah Co., Aug. 
1910, 1156; North slope Mt. Hood, Aug. 7, 1914, 1608. 
Vaccinium ovatum Pursh—Dothan, Douglass Co., Sept. 8, 1914, 
G. B. Posey, 1932; Waldo, Josephine Co., Sept. 5, 1916, J. R. Weir, 
280; Oregon, April 19-31, 1911, H. D. House. 
Vaccinium parviflorum Smith—Whitewater Ranger Station, near 
Mt. Jefferson, Aug. 12, 1914, H. P. Barss & G. B. Posey, 1750. 
Vaccinium scoparium Lieb.2-—Mary’s Peak, Benton Co., Aug. 15, 
1914, 1284. 
Specimens of aecia collected in various parts of North America on 
Abies balsamea, A. concolor and A. lasiocarpa are now referred to this 
species in the Arthur herbarium. 
The life history was first demonstrated by Hartig (Allg. Forst.- u. 
Jagdzeitg. 289. 1880), who conducted culture investigations using 
aecia on Abies pectinata and telia on Vaccinium Vitis-idaea. He 
obtained successful infection in both directions. Other European 
investigators, notably Dr. G. Winter, have amply confirmed these 
_results. (Klebahn, Die Wirtsw. Rostpilze 391. 1904.) 
In America, Arthur (Mycologia 2: 231. 1910) was the first to 
culture this species and succeeded in obtaining aecia on Abies Frasert 
following exposure to infection from telia on’ Vaccinium pennsyl- 
vanicum sent by W. P. Fraser from Nova Scotia. Later in the same 
year Fraser made the first field collection of aecia on Abies balsamea 
(Science 30: 814. 1909) and later (Mycol. 4: 177. 1912; 6: 27. 
1914) confirmed Arthur’s work by obtaining infection on Abies bal- 
samea from telia on Vaccinium pennsylvanicum. 
6. CHRYSOMYXA WEIRII Jackson, Phytopath. 7: 353. 1917. 
On PINACEAE: 
Picea Engelmanii Parry—Whitman Nat. Forest, Oregon, July 17, 
LOE, Pa ks Weir, 27-7; 
