JACKSON: UREDINALES OF OREGON wa 
Batley, ni77.NoOv.4; 1O1l, F. D. Bailey, 7777, June 18, to14, F. DD. 
Bailey, 3218, July 29, 1914, 1450; Hilgard, Union Co., July 10, 1914, 
1533, 1535, Glendale, Douglass Co., July 17, 1914, 1505, North slope 
Mt. Hood, Aug. 7, 1914, 1488; Whitewater Ranger Station, West 
slope Mt. Jefferson, H. P. Barss & G. B. Posey, 3219; Ashland, 
Jackson Co., Sept. 10, 1914, 3221. 
Epilobhium brevistylum Barbey—Corvallis, July 14, 1914, G. B. 
Posey, 3220. 
No successful culture work has been conducted with this form, as 
here interpreted, either in Europe or America. Aecia doubtless occur 
on species of Adbzes. 
From field observations it is quite evident that in western Oregon 
at least this species overwinters in the uredinial stage. 
29. PUCCINIASTRUM PYROLAE (Pers.) Dietel, in E. & P. Nat. Pfl. 
res 47.) 1807. 
Aecidium Pyrolae Pers. Gmel. Syst. Nat. 2: 1473. I79I. 
Uredo Chimaphilae Peck, Ann. Rep. N. Y. State Mus. 46: 33. 
1893. 
ON PYROLACEAE: 
Chimaphila umbellata (L.) Nutt. (C. occidentalis Rydb.)—Spencer 
Creek, Klamath Co., 5,000 ft., July 10, 1903, E. B. Copeland, 3774 
(Sydow, Ured. 1795); Whitewater Creek along trail to Hanging Valley, 
Mt. Jefferson, Aug. 11, 1914, H. P. Barss & G. B. Posey, 1908; North 
slope Mt. Hood, Aug. 7, 1914, 1614. 
Pyrola secunda L., Klamath Co., July 10, 1903, E. B. Copeland 
(Sydow, Ured. 17971). 
30. PUCCINIASTRUM SPARSUM (Wint.) E. Fischer, Beitr. Krypt. 
Schweiz 2?: 469. 1904. 
Melampsora sparsa Wint. in Rab. Krypt. Fl. 11: 245. 1881. 
ON ERICACEAE: 
Arbutus Menziesit Pursh—Myrtle Creek, Douglass Co., June 8, 
1914, F. D. Bailey, 7837; Glendale, Douglass Co., July 17, 1914, 
12985; Ashland, Jackson Co., Sept. 10, 1914, 1838; Corvallis, April, 
I9Q1I, 3374; Grant’s Pass, Josephine Co., Sept. 3, 1916, J. R. Weir, 
244. 
Arctostaphylos Manzanita Parry—Grant’s Pass, Josephine Co., 
Sepinj 1o16;, |. KR .Weir, 245, 2247- 
Arctostaphylos nevadensis A. Gray—Northwest slope Mt. Jefferson, 
Auge 14, 1014, Hi. Ps Barss: & Gs B. Posey, 3290: 
No aecial collections have been referred to this species in America. 
Fischer (Cent. fiir Bakt. 46: 333. 1916) has cultured this species. 
He used germinating telial material on Arctostaphylos alpina and sowed 
