722 P- Sydow: Pflanzenkrankheiten 1916. [40 



and a Synopsis of all kiidwn Porto Kican Forms. (Illinois Biol. 

 MonographsII, 1916, Xr. 4, p. l-8ü, 5 PL) - Siehe Pilze 1916, Ref. Nr. 743. 



469. Weir, J. R. Hypoderma deformans, an undescribed needle 

 fungiis of the western yellow pinc. (Joiirn. Agric. Rcsearcli Washington 

 VI, 1916, p. 277-288, 4 fig.. tah. XXXTI.) N. A. 



Auf den Nadeln von Piiius ponderosa tritt in den Nordweststaaten 

 Hypoderma deformans n. sp. sehr schädigend anf. 



470. Weir, J. R. Keithia thiijina. the cause of a serious leaf 

 disease of the western cedar. (Phytopathologv M . 1916. p. .360 — 363, 

 2 fig.) 



471. Zwlcky, Robert. Lauhholzverheeruwgen durch Nectria 

 ditissima. (:Möller's Deutsche C^ärtner-Ztg. XXXI, 1916. p. 194.) 



XV. Discomyceten. 



472. Anonym. A new f ungus of lime leaves (Atichia dominicana). 

 (Rept. Agric. Dept. Dominica 1913 14, ersch. 1916, p. 13-14.) 



473. Bartram. H. E. A study of the hrown rot f ungus in 

 Nortliern Vermont. (Phytopathology VI. 191(5. p. 71 78.) — Sclerotinia 

 cinerea. 



474. Brown, H. B. Life liistory and poisonous pro])erties of 

 Claviceps paspali. (.Tourn. Agric. Research VII, 1916, p. 401 — 406, 2 fig., 1 tab.) 



475. Mc Clintock, J. A. Sclerotinia Libertiana on &nsi-p hesniH. (Phyto- 

 pathology VI, 1916. p. 436-441. 2 fig.) 



476. Weir, J. R. Phacidinm infestans on western Conifers. (Pliyto- 

 pathology \T:. 1916. p. 413-414.) 



XVI. Deuteromyceten. 



477. Blaokman, y. H. and Welsford, E. (w. Studies in the Physio- 

 logie of parasitism. II. Infection by Botrytis cinerea. (Ann. of Bot. 

 XXX, 1916, p. 389-397, 1 PI.) 



478. Brown, W. Studies in the physiology of parasitism. III. 

 O n tlie r ela tion be tweeu the ,, Inf e cti on Drop '" and the under- 

 laying host tissue. (Ann. of Bot. XXX, 1916, p. 399-406.) — Botrytis 

 cinerea. 



479. Duggar, P. M. Rhizoctonia Solani in relation to the 

 ,,Mopopilz" and the .,Vermelir ungspilz". (Ann. Missouri Bot. 

 Gard. III, 1916, p. 1-10.) - Siehe Pilze 1916, Ref. Nr. 194. 



480. Duggar, B. M. The Texas root rot f ungus and its conidial 

 stage. (Ann. Missouri Bot. Gard. III, 1916. p. 11-23, 5 fig.) N. A. 



Der die Krankheit verursachende Pilz wurde als Ozonium omnivonim 

 Shear beschrieben und lei)t auf verschiedenen Nälirwirten. Er geliört aber 

 zu Phymatotrichiim und wird deshalb Ph. omnivonim (Shear) Duggar n. comb, 

 genannt . 



481. Fromme, F. D. Violet root rot of alfalfa in Virginia. 

 (Phytopathology VI, 1916, p. 90.) Rhizoctonia Crocorum in Virginien. 



482. O'Gfara, E. J. APhoma disease of western wheat-grass. 

 (Science, N. S. XLIII. 1916, p. 110-111.) 



483. Peltier, 0. L. Parasitic Rhizoctonias in America. (Illinois 

 Agr. Exp. Stat. Bull. Xt. 189. 1916. p. 283-390, 23 fig.) 



