242 EXPERIMENT STATION EECORD. 



pp. S2, fig. 1). — This pamphlet deals with methods of administration in con- 

 trolling diseases and insect pests of agricultural plants, entomological and 

 pathological arrangements at agricultural experiment stations, measures for 

 controlling diseases and insect pests of agricultural plants adopted by public 

 communities, and education and practice upon insect pests and plant diseases. 



Report of the mycological section, C. J. J. van Hall (Jaarb. Dept. Landl)., 

 Vijv. en Handel Nederland. Indie, 1911, pp. 37-39). — The author briefly reports 

 on some of the investigations in progress in the mycological laboratory, the 

 principal studies being on the canker of cacao, downy mildew of maize, root rot 

 of Hevea (probably due to Fomes semitostus), and the rot of cacao caused by 

 Phytophthora faberi. 



From diseased cacao trees three forms of Fusarium have been isolated, and 

 studies are reported in progress with these organisms to determine their rela- 

 tions with the canli;er disease. The Peronospora disease of maize is said to be 

 due to P. maydis. 



The g-enus Atichia, A. D. Cotton {Roy. Bot. Oard. Kew, Bui. Misc. Inform., 

 No. 2 il91Jt). pp. 54-63, fig. 1). — The author describes A. dominicana n. sp., an 

 aberrant species of Ascomycetes found on lime leaves in the West Indies. The 

 genus to which this fungus belongs was formerly grouped with the Collemaceae, 

 but it is now placed in the family Atichiacese. A conspectus of the eight known 

 species of the family is given. 



Studies on Nectriacese, I, J. Weese (Ztschr. Gariingsphysiol., 1 {1912), No. 2, 

 pp. 126-155, figs. 4). — ^Claiming that the fungus described as Nectria ruM n. sp., 

 by Osterwalder (E. S. R., 26, p. 450), is not a new species, but a variety of 

 N. mammoidea, and discussing further N. galligena on fruit and other trees 

 (E. S. R., 26, p. 448), the author describes as new species several fungi which 

 are named, respectively, N. pseudograminicola (on leaves of Calamagrostis 

 arundinacea) , N. flammeola (on Populus canadensis), N. incrustans (on Betula 

 and Altius), also as new varieties N. inundata minor and N. cinnabarina veneta. 

 The systematic position of N. platyspora is also critically discussed. 



Remarks concerning "Weese's studies on Nectriaceae, A. Osterwaldeb 

 (Ztschr. Gdrungsphysiol., 3 {1913), No. 2, pp. 212, 213). — A brief discussion is 

 given of the article noted above. 



A reply to Osterwalder's remarks concerning studies on Nectriaceae, 

 J. Weese {Ztschr. Gdrungsphysiol., 3 {1913), No. 2, pp. 214-223). — This is a 

 further discussion of the author's previous publication (see above). 



A review of the genus Phytophthora, G. W. Wilson {Mycologia, 6 {1914), 

 No. 2, pp. 54-S3, pi. 1). — This is mainly a historical review, with bibliography, 

 of work recently published on the genus Phytophthora, containing descriptions 

 and discussion of 13 species as established and of 3 considered as yet of doubt- 

 ful classification. 



Corrosive sublimate and sublimoform for rust and Pusarium on grains 

 {Prakt. Bl. PflanzenMw u. Schutz, n. ser., 12 {1914), No. 2, pp. 16-19). — Results 

 of treating seed grain with sublimoform or with corrosive sublimate were not 

 quite uniform with those of the previous year. The use of these two fungicides 

 jointly is suggested. 



Causes of mycelium formation in TJstilago jensenii, E. Hils ( Ursachen der 

 MycelUldung bei Ustilago jensenii. Diss., TiiUngcn, 1912, pp. 42, figs. 10; rev. 

 in Mycol. CentU., 3 {1914), ^o. 7, pp. 338, S3P).— Summarizing conclusions 

 drawn from this study, the jiuthor claims it to be highly probable that the for- 

 mation of mycelium in barley by U. jensenii is favored by an excess of oxygen 

 in the interior of the host plant as well as by the presence of alkaline products 

 of metabolic changes in the fungus itself. 



