JACKSON: UREDINALES OF OREGON 2^ 



On Saxifragaceae : 



Saxifraga Marshallii Greene — Hood River, May i6, 1915, 3268; 

 Mary's River, E. of Wren, Benton Co., April 17, 1915, 261/. 



Saxifraga odontoloma Piper— Corvallis, May i, igi$, J26Q. 



164. PucciNiA Sherardiana Kocrn. Hedw. 16: 19. 1877. 

 Puccinia Malvastri Peck, Bull. Torrey Club 12: 35. 1885. 



On Malvaceae: 



Sidalcea virgata Howell — Corvallis, May 31, 1892, A. T. Mulford, 

 5, Apr. 13, 1912, F. D. Bailey, 3354, June 23, 1913, F. D. Bailey, 1128, 

 Apr. 8, 1914, 3352, Apr. 29, 1914, G. B. Posey, 3353, Apr. 30, 1915, 

 3071; Newburg, Yamhill Co., Apr. 9, 1915, F. D. Bailey, 3072. 



165. Puccinia Sidalceae Holw. N. Am. Ured. i: 67. 1907. 

 On Malvaceae: 



Sidalcea oregana Gray — Klamath Co., July 10, 1903, E. B. Cope- 

 land, type. 



This collection was distributed as P. Sphaeralceae E. & E. in 

 Sydow's Uredineen 1782. 



166. Puccinia Stipae Arth. Bull. Iowa Agr. College Dept. Bot. 



1884: 160. 1884. 

 On Poaceae: H and HI. 



Stipa comata Trin. & Rupr. — Umatilla, Umatilla Co., July 11, 



1914, I36g, May 11, 1915, 3205; Hermiston, Umatilla Co., May 12, 



1915, 3206. 



This species has aecia on various genera of Carduaceae including 

 Aster, Solidago, Grindelia and Senecio, as has been shown by Arthur 

 (Jour. Myc. 11: 63. 1905; Mycol. 4: 19. 1912, 7: 72. 1915). 

 No aecial collections have been made in Oregon, though that stage 

 is doubtless not uncommon in the eastern part of the state (cf. 69). 



167. Puccinia suBNiTENS Dietel, Erythea 3: 81. 1895. 

 ? Aecidium Sarcohati Pk. Bot. Gaz. 6: 240. 1881. 



On Chenopodiaceae : I. 



Sarcobatus verniicidatus (Hook.) Torr. — Eastern Oregon, Aug. 

 1902, D. Griffiths (Vestergren, Micro. Rar. Sel. 852). 

 On Poaceae: HI. 



Distichlis spicata (L.) Greene — LaGrand, Union Co., March, 1915, 

 C. C. Gate, 3278; Umatilla, Umatilla Co., July 11, 1914, 1367, 1373; 

 Moro, Sherman Co., Aug. 4, 1914, C. R. Ball, 1856. 



This remarkable species has aecia on a large number of hosts in 

 the Polygonaceae, Chenopodiaceae, Amaranthaceae, Cruciferae, etc. 

 as was first shown by Arthur (Bot. Gaz. 35: 19. 1903; Jour. Myc. 

 11: 54. 1905, 12: 16. 1906, 13: 197. 1907, 14: 15. 1908; Mycol. 



