Eumycetes. — Pflanzenkrankheiten. 351 



tion of sporangia, chlamydospores and oospores are explained. The 

 two latter wcrc unknovvn previously and were only met with in 

 culture. The dcvelopmcnt of thc oogonium and antheridium agrees 

 with that described by Pethybridge for P. erythroseptica and P. 

 iiifestans and by Das tu r for P. pafasiticn (see above). The pene- 

 tration of the antheridium by the oogonium origin was observed 

 and also the subsequent formation of oogonium, oosphere and 

 Gospore. No fertilization process could be detected. The paper con- 

 cludes with an account of inoculation experiments and treatments to 

 be adopted. The systematic position of the fungus is also diseussed. 



2. Butler, E. J., Pythhim de Bavyanum, Hesse. (I.e. p. 262— 266.) 



Records the occurrence of this fungus in India, the plant 

 attacked is Ricinus, coinumnis. A füll description of the fungus is 

 given and also an account of some experiments. 



3. Kulkarni, G. S., Observations on the Downy Mildew, 

 {Sclerospora gramiyacola) of Bajri and Jowar. (I.e. p. 268—274.) 



Gives an account of Sclerospora grauiinicola on Pennisetian 

 typhoideuni (bajri), A)idropogoii Sorghicrn (jowar), and also on Setaria 

 italica and Eiicloma liixuricnis. Gross inoculations were not successful 

 and the author states that the results go to show that the bajri and 

 jowar Selerospora are not one and the same fungus. They differ in 

 mode of attack and in form of sporangia. He names the jowar form 

 5. graniinicola var. A)idropogonis Sorghi. 



4. Butler, E. J., The Down}'^ Mildew of Maize, Sclerospora 

 Maydis, (Rac.) Butler. (I.e. p. 275—280.) 



The fourth paper concerns the Maize Mildew {Peroiiospora 

 Maydis, Rac.) which is shown by the author to be a Sclerospora. 

 The fungus has caused much damage in Java, and was observed 

 in India for the first time in I9r2. A füll description is given, 

 allied species diseussed, and remedial measures suggested. 



Ä. D. Cotton. 



Ellis, W. J., New British Fungi. (Trans. Brit. Myc. Soc. 1912. 

 p. 124—126. Publ. May 1913.) 



In addition to recording 8 species new to Britain the author 

 described 2 novelties, namely, Septoria Liinariae on Liumria bien- 

 nis, and Plilyctaena fraxiin on Fraxiniis excelsior. A. D. Cotton. 



Evans, J. B. Pole, Report of the Plant Pathologist and 

 Myco logist. (Union of South Africa. Dept. Agric. Rep. 1911. 

 p. 257-267. (Appendix X). Cape Town 1913.) 



The principal subjects dealt with in the report are the more 

 important plant diseases existing in the Union of South Africa 

 and the work carried out in connection with the investigation of 

 the endemic fungus flora. A number of points of economic interest 

 are dealt with, but no new diseases are here described. 



A. D. Cotton. 



Pethybridge, E. H., On the Nomenclature of... Spongospora 

 siibterratiea (Wallr.) Johnson. (Journ. Roy. Hort. Soc. XXXVIII. 

 3. p. 524-530. 1913.) 



A critical discussion of the nomenclature of the organism cau- 



