116 University of California Publications in Botany [VOL. 7 



38. Phragmidium disciflorum (Tode) James. 0, I, II, III 

 Fungi Meckl., vol. 1, p. 16, 1790; James. Contr. U. S. Nat. Herb., vol. 3, 



p. 276, 1895. 



On cultivated roses of the hybrid perpetual class, common through- 

 out the state. 



39. Phragmidium imitans Arthur. I, II, III 



N. A. Flora, vol. 7, p. 165, 1912. 



On Rubus leucodermis Dougl., Sisson, Shasta Springs, Yosemite 

 Valley and Rionido; on cultivated varieties of raspberry rather 

 frequent and sometimes destructive. 



40. Phragmidium Ivesiae Sydow. I, II, III 



Ann. Myeologici, vol. 1, p. 329, 1903. 



On Potentilla Blaschkeana Turcz., Sisson, Lake Tahoe, Lassen 

 County (Davy) ; on P. glandulosa Lindl., Modoc County (Meinicke) ; 

 on P. Hallii Rydb., Lake Tahoe (Holway) ; on P. Elmeri Rydb., Don- 

 ner Lake (Heller). 



41. Phragmidium montivagum Arth. 0, I, II, III 



Torreya, vol. 9, p. 24, 1909. 



On Rosa gymnocarpa Nutt., Pine Ridge, Fresno County (Hall and 

 Chandler). . 



42. Phragmidium occidentale Arthur. 0, I, II, III 



Greene, Plantae Bakerianae, vol. 2, p. 3, 1901. 



On Rubus parviflorus Nutt., Shasta Springs, Los Gatos, Berkeley, 

 Mount Tamalpais, Rionido, Yosemite Valley, and Lake Tahoe. 



43. Phragmidium Rosae-californicae Diet. I, II, III 



Hedwigia, vol. 44, pp. 125, 333, 1904. 



On Rosa californica Cham, and Schl., R. gymnocarpa Nutt., R. 

 sonomensis Greene, and R. minutifolia Englm. Of frequent occur- 

 rence throughout the Coast Ranges. The aecia produce hypertrophy 

 of the young shoots early in the season; later they appear on the 

 mature leaves, which they injure but little. 



PILEOLARIA CAST. 

 Obs., vol. 1, p. 22, 1842. 



Uredinia erumpent, with paraphyses; urediniospores borne singly 

 on pedicels, walls colored. Telia erumpent, definite ; teliospores borne 

 on pedicels, one-celled, flattened laterally, wall deeply colored, very 

 verrucose. 



