JACKSON: UREDINALES OF OREGON 273 



uredinia. The aecia were somewhat old and no uredinia were found 

 on other Epilobium plants in the vicinity. Tranzschel (Ann. Myc. 7: 

 182. 1909) established the connection of aecia on Epilobium with P. 

 Veratri, obtaining his clew from the close morphological resemblance 

 of the teliospores of this species to those of P. Epilobii DC. Bisby 

 (Am. Jour. Bot. 3: 527-561. 1916) has pointed out the morpho- 

 logical similarity of this species with Uromyces plumbarius (cf. 201), 

 P. Epilobii, P. Epilobii-tetragoni (cf. 99) and P. Epilobii- Fleischeri . 



176. PucciNiA ViOLAE (Schum.) DC. Fl. Fr. 6: 62. 1815. 

 Aecidium Violae Schnxn. Enum. PI. Saell. 2: 224. 1803. 



On Violaceae: 



Viola adunca J. F. Smith — Mary's Peak, Benton Co., May 21, 



191 5, J22J. 



Viola glabella Nutt.^ — Corvallis, Linn Co., April 16, 1912, 1081; 

 Corvallis, May 19, 1912, F. D. Bailey, 3198, April 29, 1914, F. D. 

 Bailey, 3164, July 14, 1914, H. P. Barss, 2548; Hood River, May 14, 

 1914, 3197; Portland, Aug. 30, 191 5, E. Bartholomew, 5978 (Barth. 

 N. Am. Ured. 1677); Sumpter, Baker Co., July 16, 1913, J. R. Weir, 

 186; Mary's Peak,- Benton Co., Aug. 15, 1914, 2547. 



Viola nephrophylla Greene- — Hilgard, Union Co., July 10, 1914, 



2557- 



Viola riigulosa Greene — Horse Creek Canyon, Wallowa Co., 

 June 4, 1897, E. P. Sheldon, 8238. 



Viola sp. — N. slope Mt. Hood, Aug. 7, 19 14, 2jj3. 



177. PucciNiA WuLFENiAE Diet. & Holw. Erythea 3: 79. 1895. 

 Puccinia Syntheridis- Ell. & Ev. Bull. Torrey Club 27: 61. 1900. 



On Scrophulariaceae : 



Synthyris rotundifolia Gray — Philomath, April 20, 1912, 1146; 

 Corvallis, April 8, 1914, 1286. 



178. Tranzschelia punctata (Pers.) Arth. Result Sci. Congr. Bot. 



Vienne 340. 1906. 



Aecidium punctalum Pers. Ann. Bot. Usteri 20: 135. 1796. 



Puccinia Pruni-spinosae Pers. Syn. Fung. 226. 1801. 

 On Rosaceae: 



Amygdalus Persica L. — Kiger's Island, Benton Co., Oct. 5, 1913, 

 CM. Scherer, 1825. 



Prunus domestica L. (Italian Prune)— Salem, Marion Co., Aug. 

 1909, 1062; Yamhill Co., Sept. 9, 191 1, 1040; Corvallis, Oct. 29, 

 1914, G. B. Posey, 3110. 



This is not an uncommon disease of the prune, though apparently 

 doing little damage. It is less common on the peach. No aecial 

 collections have been made in the northwest. 



