6 Botanisches Centralblatt. 



Pilzen der Pflanzenwurzeln erzeugt werden]. (Atti r. Acc. Lincei 



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 Pieper, E. J. a. o. 1917. Synthetic culture media for wood-destroying 



fungi. (Phytopathology. VII. p. 214—220.) 

 Serena, P. 1914. Ueber Hefen und Fungi imperfecti in pneumoni- 

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 Somogyi, R. 1916. Ueber den Einfluss von Katalysatoren (Alkaloiden 



und Farbstoffen u.s.w.) auf die Hefegärung. (Intern. Zschr. phys.- 



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XIII. Pflanzenkrankheiten. 



Allard, A. H. 1917. Further studies on the mosaic disease oftobacco 



(Journ. agr. Res. X. p. 615—631. 1 pl.) 

 Anonymus. 1917. „Black-leg" or black stem-rot of potatoes. (Journ 



Board Agr. XXIV. p. 653—656.) 

 Anonymus. 1917. Leaf spot of Celery. (Journ. Board Agr. XXIV. p 



68-70.) 

 Anonymus. 1917. Sclerotinia diseases. (Journ. Board Agr. XXIII. p 



1095—1098.) 

 Appel, O. 1916. Die Brennfleckenkrankheit der Bohnen und Erbsen 



(Flugbl. ksl. biol. Anst. 1916. 60.) 

 Arthur, J. C. 1917. Orange rusts of Rubus. (Bot. Gaz. LXIII. p 



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 Bancroft, C. K. 1917. The leaf disease of rubber. Conditions in Suri- 

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 Eaudys, E. 1917. Neue Gallenwirte aus Böhmen. II. (Soc. entom. 



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 Brierly, W. B. 1917. On a tree of Aesculus pavia killed by Botrytis 



cinerea. (Kew Bull. 1917. p. 315—331. 2 f.) 

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caused by Fomes rimosus (Berk.). (Trans, r. Soc. S. Africa. VI. p. 



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on the wood of the willow. (S. afric. Journ. Sc. XIII. p. 506—515. 



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(Circ. New Jersev agr. Exp. Stat. 1917. 80.) 

 Cook, M. T. 1917." Common diseases of beans and peas. (Circ. New 



Jersey agr. Exp. Stat. 1917. 84.) 

 Cook, M. T. 1917. Common diseases of the peach, plum and cherry. 



(Circ. New Jersey agr. Exp. Stat. 1917. 81.) 



