ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 619 



size of the conidial form. The three species dealt with are Scl.fructigena 

 on apples ; Scl. laxa on apricots ; and Scl. cinerea on cherries. 



Sclerotium Disease of the Alder.* — Ed. Fischer has made new 

 observations on the Sderotinia found in the fruits of the Alder as 

 developed in Alnus viridis. He finds that the whole interior of the 

 fruit is occupied by the fungus. The outer layers of the sclerotium are 

 brownish-violet, and are covered with a layer of colourless hyphse, which 

 bear at the tips chains of very small conidia. It was not determined 

 if they were capable of germination. Fischer considers that the fungus 

 on A. viridis is identical with those that are found on A. incana and 

 A.glutinosa. The apothecial fruits have not been found in any of these. 



Disease of Olive Trees.f — Gr. Cuboni has investigated a disease of 

 olive trees termed " Brusca," which has worked much mischief in certain 

 districts. On the leaves of the diseased trees Cuboni has found con- 

 stantly the fungus Stictis Panizei. The leaves so attacked drop from 

 the trees, leaving them bare. He does not, however, think that the 

 evil is caused by the fungus, but that it is due rather to climatic and 

 soil conditions. 



L. Petri,J who is of opinion that the disease is due to the fungus, 

 has been making successful cultures with the spores. He has produced 

 a pycnidial form resembling a Cytospora, and also the ascomycetous fruits 

 on agar prepared with a decoction of olive leaves. 



Erysiphacese of Japan, II.§ — E. S. Salmon published in 1900 an 

 account of Japanese Erysiphes ; in the present paper he brings the work 

 up to date, and adds a considerable number of species to those already 

 recorded. He notes the occurrence there of species only found pre- 

 viously in America. Salmon finds that Ampelomyces quinqualis Ces. 

 (Cicinnobolus Cesatii), a fungal parasite of the Erysiphaceae, is common 

 in Japan, sometimes preventing the formation of conidia or perithecia. 

 Host index and bibliography are added. 



Infection Experiments with Thielavia basicola.|| — R. Aderhold 

 finds that this fungus grows readily on pieces of sterilised pear, carrot, 

 etc. Only the conidial forms were produced : neither pycnidia nor 

 perithecia were formed. The development of conidia and chlamydospores 

 was followed and carefully described. 



On the Occurrence of Saccharomyces anomalus in the Brewing 

 of Sake.l" — K. Saite isolated a mould yeast from fresh sake and studied 

 it carefully, but he was not able to state if it was identical with those 

 already determined as taking part in the formation of sake. He 

 describes the form of growth in artificial cultures, and the form of the 



* Centralbl. Bakt., xiv. (1905), pp. 618-23 (1 pi.). 



t Atti Reale Accad. Lincei, cccii. (1905) pp. 693-5. 



j Tom. cit., pp. 637-8. § Ann. Mycol., iii. (1905) pp. 239-56. 



| Arb. biol. Abt. Land, und Forstw. Kais. Ges., iv., 5 (1905) pp. 463-5. See also 

 Hedwigia, xliv. (1905) p. 145. 



f Journ. Coll. Sci. Imp. Univ. Tokyo, xix. Art. 18 (1904) 14 pp. See also Ann. 

 Mycol., iii. (1905) pp. 214-15. 



