—- 
JACKSON: UREDINALES OF OREGON Dg 
May 5, 1913, Comm. K. V. Miller, 7873; Eugene, Lane Co., Aug. 
1912, 1084; Talent, Jackson Co., May 18, 1916, F. C. Reimer. 
Pyrus baccata Linn.—Lorane Valley, Lane Co., May, 1915, C. E. 
Stewart, 3387. 
Pyrus commums L.—Kerby, Josephine Co., June 1, 1899, Comm. 
E. F. Meissner, 1845; Brownsville, Linn Co., May 24, 1913, D. W. 
Brumbaugh, rgz1; Eugene, Lane Co., May 8, 1913, 3172, April 22 
1915, 2620. 
Pyrus diversifoia Bong. (P. rivularis Dougl.)—Cottage Grove, 
izane'Co., June 13, 1913; 3275; 3211. 
Pyrus toensis (Wood) Bailey—Cottage Grove, Lane Co., June 13, 
1913, 2654, Eugene, Lane Co., May 21, 1913, 3270. 
iPpyrus malus .— Eugene; Lane Co:, July 10; 1913; J. O.. Holt; 
bgo7, Cottage Grove, Lane Co:., May 23, 1913, 'C.. E. Stewart, ror, 
June 20, 1915, C. E. Stewart, 887. 
Sorbus aucuparia Linn.—Cottage Grove, Lane Co., June 13, 1913, 
aio, Mugene, Lane Co., June 1, 1914, G. H. Godfrey, 3222: 
Sorbus hybrida Linn.—Cottage Grove, Lane Co., May 21, 1913, © 
nm7o, \ime 13, 1913, 3107: 
ON JUNIPERACEAE: 
Libocedrus decurrens Yorr.—Eugene, Lane Co., Feb. 28, 1913, 
3213, Feb. 21, 1914, F. D. Bailey, 1675, Mar. 20, 1914, 3070; Breiten- 
bush Hot Springs, Marion Co., Mar. 27, 1915, E. A. Hartley, 2621; 
Cottage Grove, Lane Co., Mar. 8, 1914, C. E. Stewart, 1588; Ashland, 
Waekcon.Co:, Sept: 10, 1914, 17530; Corvallis, Mar-.30, Tors, J. G. 
Corsaut, gor; Grant’s Pass, Josephine Co., Sept. 3, 1916, J. R. Weir, 
185. 
This species is very common in its aecial stage on all the native 
members of the Malaceae as well as most of the cultivated fruits and 
ornamental plants belonging to this family which may occur in the 
range of the incense cedar. There is considerable evidence also that 
the disease is gradually spreading beyond the natural range of the 
telial host. Observations made at Corvallis support this view. 
Previous to 1915 no specimens of this species had been collected in 
Benton County though careful search had been made many times. 
The incense cedar does not occur naturally in that locality but is 
frequently planted for ornament. There are several fine examples on 
the campus at the Oregon Agr. College. In 1915 a very sparing in- 
fection of the aecial stage was found in the vicinity on native hosts 
only, and the cedar trees on the campus were found to be sparingly 
infected. Reports of the occurrence on quince have come from Salem, 
far north of the natural range of the incense cedar. The writer 
believes that the disease will gradually spread throughout the Wil- 
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