240 P- Sydow: Pilze (ohne die Scbizomyceten und Flechten). [142 



1067. Orton, W. A. The development o± farm crops resistant to 

 disease. (U. S. Dept. Agric. Yearbook, 1908, p. 453—464, 2 PI.) 



1068. Orton, W. A. Potato wilt and dry rot (Fusarium oxysporum). 

 (Science, N. Ser., XXXI, 1910, p. 75L) 



1069. Orton, \V. A. and Arnes, A. Plant diseases in 1907. (Yearbook 

 U. S. Dept. Agric. for 1907, Washington 1908, p. 577—589.) 



1070. Orton, W. A. and Arnes, A. Plant diseases in 1908. (Yearbook 

 ü. S. Dept. Agric. for 1908, Washington 1909, p. 533—538.) 



1071. Orton, W. A. and Field, Ethel C. Wart disease of the potato 

 (caused by Ohryso,phlyctis endobiotica), dangerous European di- 

 sease liable to be introduced into the United States. (U. S. Dept. 

 Agric. Bur. of Plant Indust., Washington 1910, Circ. 52, 11 pp., 2 tab.) 



Beschreibung des Krankheitsbildes und Eingehen auf die Biologie 

 des Pilzes. 



1072. Orton, W. A. and Field, Ethel C Sulphur injury to potato 

 tubers. (Science, N. Ser., XXXI, 1910, p. 796.) 



1073. Osborn, T. 0. B. The scab diseases of potatoes. (Annual 

 Rept. and Transact. Manchester Micr. Soc, 1909 [1910], p. 61—69, 1 tab.) 



1074. Ostenvalder, A. Die Fusariumkrankheit der Astern. 

 (Ländwirtsch. Jahrb. d. Schweiz, XXIV, 1910, p. 247—248.) 



Verursacher der Krankheit ist wahrscheinlich Fusarium incamatum. 



1075. Pammel, L. H. Some phytopathological problems. (Proceed. 

 Soc. Prom. Agric. Sei., XXVII, 1906, p. 76-81.) 



1076. Pammel, L. H. and King, C M. Notes on factors in fungus 

 diseases of plants, with records of oecurrences of plant diseases 

 at Arnes for a period of twenty-five years. (Proceed. Jowa Acad. Sc, 

 XVI, 1909, p. 41—97.) 



1077. Pammei, L. H. and King, Charlotte M. Some plant diseases of 

 1908. (Jowa Agric. Exper. Stat., Bull. no. 104, 1909, p. 234—259, 17 fig.) 



Ustüago Crameri. Sclerospora graminicola, Piricularia grisea, Erysiphe gra- 

 minis, Cladosporium herbarum, Colletotrichum Lindemuthianum, Uromyces appendi- 

 culatus. 



1078. Pammel, L H., King, Charlotte M. and Bakke, A. L. A barley 

 disease. (Science, N. S., XXXI, 1910, p. 639.) 



Helminthosporium teres und H. turcicum. 



1079. Pammel, L. H., King, Charlotte, M. and Bakke, A. L. Two barley 

 blights, with comparison of species of Helminthosporium upon cereals. 

 (Jowa Agric. Exper. Stat., Bull. 116, 1910, p. 178-190, 4 fig.) 



Helminthosporium gramineum, H. sativum und Liste der auf Gramineen 

 auftretenden Helminthosporium- Arten". 



1080. Patouillard, N. Les maladies de 1' Hevea brasiliensis- (Journ. 

 d'agric. coloniale, X, 1910, p. 170—171.) 



1081. Pavarino, L. Le principali malattie dei pomi e peri. (Riv. 

 Patol. veget., IV, 1910, p. 154—156.) 



1082. Peglion, V. Intorno alla forma aseofora dell' oidio della 

 vite. (Atti. Accad. Lincei Roma 2, XIX, 1910, p. 458—459.) 



1083. Pert'ival, J. New facts concerning warty disease of potato. 

 (The Garden Cronicle, XLVI, 1909, p. 79.) 



Chrysophlyctis endobiotica gehört zur Gattung Synchytriuvi und muss daher 

 S. endobioticum genannt werden. 



