138 
Journal of Mycology 
[Vol. 11 
Pathogenic Organisms, Some Problems in the Life History of. 
[Address, Section Bacteriology, International Congress of 
Arts and Science. St. Louis, Mo., Sept. 24, 1904.] Theo¬ 
bald Smith. Science, N. S. 20:817-832. 16 Dec. 1904. 
Parasitic Fungi in the United States, the Study of ; a Lecture. 
G. P. Clinton. Trans. Mass. Hort. Soc. 1904:91-196. 1904. 
Peridermium on Pinus rigida. [Cultures; negative results. 
Arthur.] Jour. Mycol. 11:52. Mar. 1905. 
Peridermium pini [Cultures on Campanula americana. Keller- 
man.] Jour. Mycol. 11:32. Jan. 1905. 
Phragmidium speciosum Fr. [Cultures on Rosa arkansana Port., 
R. Carolina L., R. humilis Marsh., and R. nitida Will.; nega¬ 
tive results on R. lucida; teleutospores from R. arkansana.] 
Jour. Mycol. 11:55. Mar. 1905. 
Phyllachora adolphiae Ell. & Kellerm. a synonym of Phylla- 
chora mexicana Turconi. Jour. Mycol. 11:48. Jan. 1905. 
Physalacria inflata (S.) Peck. Observations on. Jessie M. Pol- 
ley. Minn. Bot. Studies, 3 :323-8. PI. LIII. 18 Oct. 1904. 
Phyllachora mexicana Turconi. [Description; spermogonial 
stage, Cytosporina adolphiae Turconi. Syn. Phallachora 
adolphiae Ell. & Kellerm.] Jour. Mycol. 11:48. Jan. 1905. 
Phyllachora simabae cedronis P. Henn. n. sp., auf Blattern von 
Simaba cedron. Hedwigia, 43:147. 16 May 1904. 
* 
Pilophorus, see Lichens, Stereocaulon, Philophorus. . . . 
Polygonum bistortoides, host to Sphacelotheca hydropiperis var. 
borealis Clint, n. var. Proc. Boston Soc. Nat. Hist. 31:395- 
Oct. 1904. 
Preliminary List of Michigan Saprophytic fleshy fungi, see 
Longyear, B. O. . . . 
Pseudomonas campestris (Pam.) Smith on Cabbage seed, Vital¬ 
ity of. H. A. Harding and F. C. Stewart. Science, N. S. 
20:55-6. 8 July 1904. 
Pogonomyces Murrill n. g. Polyporaceae (type, Boletus hyd- 
noides Sw.). Bull. Torr. Bot. Club, 31:609. Nov. 1904. 
Pogonomyces hydnoides (Sw.) Murrill n. n. [Boletus hydnoides 
Sw., B. hydnatinus Bose,. Polyporus pellitus Mey., Boletus 
crinitus Spreng., B. fibrosus Hook., Polyporus feathermanni 
Rav.] Bull. Torr. Bot. Club, 31:6o9. Nov. 1904. 
Poikilosporium Diet., syn. of Thecaphora q. v. 
Polycistis Lev., syn. of Urocystis q. v. 
Polygonum bistortoides, host to Sphacelotheca hydropiperis bore¬ 
alis Clinton n. var. Proc. Boston Soc. Nat. Hist. 31:395. 
Oct. 1904. 
