JACKSON: UREDINALES OF OREGON 233 
This species has its aecia on species of Anchusa and Lycopsis in Europe 
as was first shown by De Bary (Monatsber. k. Akad. d. Wiss. Berlin 
211. 1866). No aecia referable to this species have been found in 
America, but Arthur (Mycologia 1: 236. 1909) obtained the develop- 
ment of pycnia on Lycopsis arvensis secured from Europe, following 
exposure to germinating telia on rye collected in Indiana. This 
culture indicates that the European and American rusts are identical. 
68. PUCCINIA ASPERIOR E. & E. Bull. Washb. Lab. 1: 3. 1884. 
Puccinia oregonensis Earle, Bull. N. Y. Bot. Gard. 2: 349. 1902. 
Allodus oregonensis Arth. Résult Sci. Congr. Bot. Vienne 345. 
1906. 
Allodus aspertor Orton, Mem. N. Y. Bot. Gard. 6: 193. 1916. 
On UMBELLIFERAE: 
Leptotaenia dissecta Nutt.—Corvallis, June and July, 1898, M. 
Craig, April 14, 1899, M. Craig, June, 1910, 2614, March 24, 1914, G. B. 
Posey,2665; Mary’s River near Wren, Benton Co., June 5, 1915, 2673. 
This is one of the most common and conspicuous of rusts, prob- 
ably widely distributed throughout western Oregon. The type of 
P. oregonensis, the second collection listed, was described as on Sanicula 
bipinnata, which is clearly an error for the above host as was first 
pointed out by Holway (N. Am. Ured. 14: 93. 1913). 
69. PucciniA AsTERUM (Schw.) Kern, Mycologia 9: 224. I917. 
Aecidium asterum Schw. Schrift. Nat. Ges. Leipzig 1: 67. 1822. 
Aecidium Solidaginis Schw. Schrift. Nat. Ges. Leipzig 1: 68. 
1822. 
Caeoma asteratum Link in Willd. Sp. Pl. 6: 51. 1825. 
Caeoma (Aecidium) erigeronatum Schw. Trans. Am. Phil. Soc. II. 
A292), “1832. 
Puccinia extensicola Plowr. Brit. Ured. Ustil. 181. 1889. 
Puccinia Caricis-Erigerontis Arth. Jour. Myc. 8: 53. 1902. 
Puccinia Caricis-Asteris Arth. Jour. Myc. 8: 54. 1902. 
Puccinia Caricis-Solidaginis Arth. Bot. Gaz. 35: 21. 1903. 
On CARDUACEASE: I. 
Aster sp.—Philomath, May to, 1914, 1309, 3066; Hilgard, Union 
Co., July 10, 1914, 3056; Corvallis, May 9, 1914, 3367, 3368, April 31, 
1915, W. E. Lawrence, 3048; Hood River, May 14, 1914, 3022; 
Sumpter, Baker Co., June 1913, J. R. Weir, 85. 
Erigeron speciosus DC.—Near Whitewater ranger station, Mt. 
Jefferson, Aug. 16, 1914, H. P. Barss & G. B. Posey, 3292. 
Euthamia occidentalis Nutt.—Mary’s River, Benton Co., June 
1898, M. Craig. 
