574 Fungi, Myxomyceten , Pathologie. 



are found in the normal foliage leaves and also in those formed in 

 the inflorescence. The germination of the oospores is not known. 



The remainder of the paper deals with the attacks of Sclerospora 

 on Andropogo)! Sorghum, Setaria italica, and Eiidüaena luxtirians; in 

 the two former the oospore stage only is known, whilst in the last 

 only the sporangial stage has been observed. In conclusion a syste- 

 matic account of the genus is given. A. D. Cotton (Kew). 



Cotton, A. D., Notes on British Clavariae. (British mycological 



Society, Transactions 1906. p. 163 — 166.) 



From this paper, only the case of Ciavaria inaequalis Müller 

 need here to be referred. In the opinion of the writer C. dissipabilis 

 Britz, must be regarded as a synonj^m of C. inaequalis. Practically 

 the onh^ featiire which has hitherto kept the two apart is the cha- 

 racter of the spores, those of the former were stated to be subglobose 

 and provided with spines, and those of the latter elliptical and smooth. 

 The whole historj^ of the two names is brought forward, and it is 

 shown that the possession of smooth elliptical spores by C. inaequalis , 

 is a Statement that cannot be supported by facts. 



C. inaequalis Müller must therefore "be described as a species 

 possessing sharply warted or spiney, irregularly globose spores, 

 5—6 n. diam (excl. spines) and including C. dissipabilis Britz, and C. 

 sitnilis Bond, and Fat. as Synonyms. A. D. Cotton (Kew). 



Ewart, A. T., Note |on the Phosphorescence of Agaricus 

 [Pleurotus) candescens Müll. (The Victorian Naturalist, Melbourne. 

 Vol. XXIII. 1907. p. 174.) 



The luminosity of Pleurotus candescens is shown to be greatest 

 between 20° and 30° C, fading at 5° on the one band and at 40- 50° C. 

 on the other. In cold water the sporophores became non-luminous 

 after 4 hrs, but recovered their luminositj' almost immediatel}^ on 

 exposure to air. Dipped in alcohol or in an atmosphere of CO2 the 

 luminosity rapidly fades. The author concludes that in this plant the 

 production of light is intimately associated with the respiratory 

 katabolism involved in the formation of spores and any factor which 

 diminishes the respiratory activity also diminishes the production 

 of light. A. D. Cotton (Kew). 



Grove, W. B., Three Interesting Ascomycetes. (Journal of 

 Botany Vol. XLV. May 1907. p. 169-172. 1 Plate.) 



The notes concern Dasyscypha canescens Mass., Coryne urnalis 

 Mass., Eleutheromyces loytgisporus Phil, and Plowr. For the last of 

 these the author provides a new genus, Eleutherosphaera , which 

 differs from Eleutheromyces in the possession of septate spores. 



A. D. Cotton (Kew). 



Iwanoff, B., Untersuchungen über den Einfluss des Stand" 

 ortes auf den Entwicklungsgang und den Peridienbau 

 der Uredineen. (Dissert. Abdr. aus d. Centralbl. f. Bakteriologie etc. 

 IL Abt. XVIII. 1907.) 



Die im ersten Teile dieser Arbeit mitgeteilten Versuche sind 

 noch zu wenig zahlreich, um bereits allgf^meine Schlussfolgerungen 



