162 Journal of Mycology [Vol. 13 



Plant Disease Survey of the United States. [Abstract] W. A. 

 Orton. Science N. S. 25:268. 15 Feb. 1907. 



Pleoravenelia (Long) Dietel n. n. sectio Raveneliae. Beihefte 

 z. Bot. Centrbl. 20:358. 1906. 



Plicaria repandioides Rehm n. sp., ad lignum putridum Populi. 

 Ann. Mycolog. 3:318. Dec. 1905. 



Plicaria rubrofusca Rehm n. sp., ad terram. Ann Mycolog. 

 3:517. Dec. 1905. 



P^ucHEA odorata Cass., host to Uredo biocellata Arth. Jour. 

 Mycol. 13:25. Jan. 1907. 



Pluchea purpurascens (L.) DC, host to Uredo biocellata Arth. 

 n. sp., Bull. Torr. Bot. Club, 33:517. Oct. 1906. 



Plumiera rubra L., host to Coleosporium plumierae Pat. [Gau- 

 temala and West Indies.] Jour. Mycol. 13:19. Jan. 1907. 



Pluteu.s grandis Peck. n. sp., among fallen leaves in woods. N. 

 Y. State Mus. Bull. 105 (Bot. 9) :27. Aug. 1906. 



Plowrightia, a New, from Guatemala. W. A. Kellerman. 

 Jour. Mycol. 12:185-7. PI. 90. September 1906. 



Plowrightia williamsoniana Kellerm. n. sp. on living and lan- 

 guishing leaves of Agave americana [Guatemala.] Jour. 

 Mycol. 12:186. Sept. 1906. 



PoLiOMA delicatula Arthur n. sp., on Salvia elegans Vahl, [Mex- 

 ico.] Jour. Mycol. 13:29. Jan. 1907. 



PoLiOMA nivea (Holw.) Arthur nom. nov. [Puccinia nivea 

 Holway.] Jour. Mycol. 13:29. Jan. 1907. 



Polymorphism of Basidiomycetes, Culture Studies in. [Ab- 

 stract.] Geo. R. Lvman. Science N. S. 25:290. 22 Feb. 

 1907. 



Polvporus sulphureus semialbinus Peck n. var. N. Y. State Mus. 

 Bull. 105 (Bot. 9) :34. Aug. 1906. 



PoLYPORUs underwoodii Murr. n. sp., N. Y. State Mus. Bull. 

 105 (Bot. 9) :27. Aug. 1906. 



Prospodium Arthur gen. nov. [Uredinales.] Tour. Mycol. 

 13:30. Jan. 1907. 



Prospodium amphilophii (D. & H.) Arth. n. n. [Puccinia am- 

 philophii Diet. & Holw.] on Pithecoctenium hexagonum DC. 

 (not Amphilophium, as originally published.) Jour. Mycol. 

 13:31. Jan. 1907. 



Prospodium appendiculatum (Wint.) Arth. n. n. [Puccinia ap- 

 pendiculata Wint., P. ornata Harkn., P. medusaeoides Arth., 

 P. tecomae Sacc, and Dicaeoma stantis Kuntze, D. appen- 

 diculata Kuntze.] Jour, Mycol. 13:31. Jan. 1907. 



