ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 353 



Behbens, J.— Mebltau der Quitte. (Mildew of the Quince.) 



[The fungus was found to be a species of Splnerotheca, which 

 had passed to the Quince from another host.] 



Ber. Groszherzogl. badisch. landivirtsch. Versuch- 

 sanst. Augustenburg uber Tiitigkeit im Jahre 

 1903, pp. 39-40. 

 See also Centralbl. Bald., xiv. (1905) p. 145. 



,. „ Krankheitserscheinungen am Flieder. (Disease of the Alder.) 



[Pltoma depressa was found in abundance on the dead twigs.] 



Tom. cit.. pp. 42-3. 

 See also Centralbl. Bald., xiv. (1905) p. 148. 



„ Einfluz auzerer Verhaltnisse auf die XTeberwinterung parasitischer 

 Pilze. (Influence of external conditions on the wintering of 

 parasitic fungi.) 



[The writer thinks that a mild winter is more unfavourable 

 than a severe one to the life of the fungus, as other in- 

 fluences come into play which are hurtful.] 



Tom. cit., pp. 28-30. 

 See also Centralbl. Bakt., xiv. (1905) p. 146. 



„ „ Beobachtungen uber Brandkrankheiten. (Observations on rust 



diseases.] Tom. cit., pp. 40-1. 



See also Centralbl. Bakt, xiv. (1905) p. 146. 



„ Untersuchungen uber die Scbwankungen bei Keimkraftprufungen 

 und ihre Ursachen. (Researches on variation in germination, and 

 the causes of it.) 



[The writer passes in review a number of cases of germinat- 

 ing seeds. He rinds, that the germinating power is de- 

 stroyed b,v the attacks of small fungi.] 



Tom. cit., pp. 43-8. See also Centralbl. Bakt. 



xiv. (1905) p. 146. 



„ „ Das Teigigwerden der Mispeln. (The over-ripeness of Medlars.) 



[Behrens finds that this condition is induced by various 

 moulds — Mticor, Mondia, and Botrytis.'} 



Tom. cit., pp. 38-9. 

 See also Centralbl. Bakt., xiv. (1905) pp. 146-7. 



., „ Der rote Brenner der Kuben. (The red brand of the vine.) 



[The perfect fruits of the fungus Pseudopeziza traclieiphila 

 were found on the diseased leaves.] 



Tom. cit., pp. 36-7. 

 See also Centralbl. Bakt., xiv. (1905) p. 147. 



Busse, "W. — Beisebericht der pflanzenpathologischen Expedition des kolonialwirts- 

 chaftlichen Komitees nacb Westafrika. (Travelling report of the 

 plant-pathological expedition of the Colonial Committee for West 

 Africa.) 



[The report deals with diseases caused by fungi and by animals.] 



Der Tropenpflanzer, No. 1 (1905). 

 See also Centralbl. Bakt., xiv. (1905) pp. 235-6. 



„ „ Untersuchungen uber die Krankheiten der Sorghum-Hirse Ein Beitrag 

 zur Pathologie und Biologie tropischer Kulturgewacb.se. (Re- 

 searches on the diseases of Millet. A contribution to the pathology 

 and biology of tropical cultivated plants.) 



[The writer discusses the various insect pests, etc., also the 

 species of Ustilago that attack Millet plants.] 



Arb. biol. Abt. Land. Forstic. Kais. Ges., iv. (1904) 



p. 319-426 (2 pis.). 

 See also Centralbl. Bakt.,xiv. (1905) pp. 141-5. 



June 21st, 1905 2 b 



