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 i : 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. i : 3. 1884. 

 Puccinia oregonensis Earle, Bull. N. Y. Bot. Gard. 2: 349. 1902. 

 Allodiis oregonensis Arth. Result Sci. Congr. Bot. Vienne 345. 



1906. 



Allodus asperior Orton, Mem. N. Y. Bot. Gard. 6: 193. 1916. 

 On Um belli ferae: 



Leptotaenia dissecta Nutt. — Corvallis, June and July, 1898, M. 

 Craig, April 14, 1899, M. Craig, June, 1910, 2614, March 24, 1914, G. B. 

 Vosey, 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. i"*: 93. 19 13). 



69. Puccinia Asterum (Schw.) Kern, Mycologia 9: 224. 1917. 

 Aecidium asterum Schw. Schrift. Nat. Ges. Leipzig i : 67. 1822. 

 Aecidium Solidaginis Schw. Schrift. Nat. Ges. Leipzig i : 68. 



1822. 



Caeoma asteratum Link in Willd. Sp. PI. 6-: 51. 1825. 



Caeoma (Aecidium) erigeronatum Schw. Trans. Am. Phil. Soc. IL 

 4: 292. 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 Carduaceae: L 



Aster sp. — Philomath, May 10, 1914, ijog, 3066; Hilgard, Union 

 Co., July 10, 1914, J05(5; Corvallis, May 9, igi^, 3367, 3368, April 31, 

 191 5, \V. E. Leiwrence, 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, 32g2. 



Euthamia occidentalis Nutt. — Mary's River, Benton Co., June 

 1898, M. Craig. 



