1919] Blasdale: Uredinales of California 117 



44. Pileolaria Toxicodendri (Berk, and Rav.) Arthur. 0, II, III 



Grevillea, vol. 3, p. 56, 1874; Arthur, N. A. Flora, vol. 7, p. 147, 1907. 

 On Rhus diversiloba T. and G., common in the Coast Ranges, Cata- 

 lina Island (Bartholomew). 



POLYTHEUS ARTHUR 

 Eesult. Sci. Cong. Bot. Vienne, p. 341, 1906. 



Telia erumpent, definite, without peridium. Teliospores forming 

 heads attached by fragile pedicels to a common stalk, which is incon- 

 spicuous; two-celled by a transverse septum, easily separating at the 

 septum. 



45. Polythelis Thalictri (Chev.) Arthur. 0, III 



Chev., Fl. Paris., vol. 1, p. 417, 1826; Arthur, Eesult. Sei. Cong. Bot. 

 Vienne, p. 341, 1906. 



On Thalictrum Fendleri Englm., Lake Tahoe. 



PUCCINIA PEES. 

 Sp. PI., vol. 6, p. 67, 1825. 



Aecia erumpent, cupulate, or cylindrical; aeciospores in chains, 

 globoid or ellipsoid, wall colorless. Uredinia erumpent definite, with- 

 out peridium; urediniospores borne on pedicels, wall colored, echinu- 

 late or verrucose. Telia erumpent, sometimes long covered by the 

 epidermis; teliospores two-celled; wall colored, with a single pore to 

 each cell. 



TELIA ON GRAMINACEAE 



46. Puccinia abundans (Pk.) Jackson. I, III 



Mem. Brooklyn Bot. Gard., vol. 1, p. 229, 1918. 



The aecial stage of this species (Aecidium abundans Pk.) is occasion- 

 ally found on Symphoricarpos racemosus Michx., Berkeley, Santa 

 Rosa. 



Telia not definitely reported from California but to be expected 

 on species of Festuca. 



47. Puccinia adspersa Diet, and Holw. II, III 

 Erythea, vol. 3, p. 81, 1895. 



On unknown grass, Modoc County (F. P. Nutting). This species 

 seems to differ but little if at all from Puccinia, Clematidis (DC) 

 Lagerh. 



