178 



Mycologia 



Allodus Douglasii (Ellis & Ev.) Orton, Mem. N. Y. Bot. Gard. 



6: 198. 1916 



Puccinia Douglasii Ellis & Ev. Proc. Acad. Phila. 1893: 152. 

 1893. 



Dicaeoma Douglasii Kuntze, Rev. Gen. 33 : 468. 1898. 

 Puccinia Richard sonii Sydow. Monog. Ured. i : 317. 1902. 



On Polemoniaceae 

 Phlox alyssifolia Greene. Montana. 



Phlox amoena Sims. {P. procumhens A. Gray.) Pennsylvania. 



Phlox depressa (A. Nels.) Rydb. Montana. 



Phlox diapcnsioid.es Rydb. Montana. 



Phlox diffusa Benth. Oregon, Utah, Washington. 



Phlox glabrata (E. Nels.) A. Brand. Wyoming. 



Phlox Hoodii Richards. Montana, Utah. 



Phlox nana Nutt. New Mexico. 



Phlox rigida Benth. Utah. 



Phlox scleranthifolia Rydb. Nebraska. 



Phlox suhulata L. New Jersey. 



3. Other Outstanding Species 



Aecidium Polemonii Peck, Bot. Gaz. 4: 230. 1879 

 This Aecidium which has been shown by Arthur^ to be the 

 aecial stage of Uromyces acuminatus was first described on Pole- 

 monium reptans from Iowa. It is now known that the same rust 

 goes to species of Collomia and Phlox as well as to Gilia in all 

 probability. This Aecidium is to be distinguished from the 

 Aecidium of Allodus Giliae by its larger aeciospores which are 

 15-24 X 18-27^ as contrasted with 13-^19 X 14-22 /x, the size of 

 aeciospores of A. Giliae. The walls of the peridial cells also ap- 

 pear to be regularly thicker in A. Giliae than in Nigredo Polemonii. 



Puccinia Giliae Hark. Bull. Calif. Acad. Sci. i : 34. 1884 

 Harkness^ described this rust which is usually ascribed to 



5 Arthur, J. C. Cultures of Uredineae in 1910. Mycologia 4: 29. 1912. 

 6Harkness. New Species of California Fungi. Bull. Calif. Acad. Sci. i : 

 29-47. 1884. 



