Fungi, Bacteria und Pathologie 315 



Hansen, E. Ch., lieber die Brutstätten der Alkohol- 

 gärungspilze oberhalb der Erde. (Centralbl. f. Bakter. 

 Abt. II. Bd. XIV. 1905. p. 545—550.) 



Neuere wie auch frühere Feststellungen ergaben, dass die Erde den 

 wichtigsten Winteraufenthaltsort der Mikroorganismen bildet; aber auch 

 oberhalb des Erdbodens in hohlen Räumen , auf Mauerwerk, Felsen^ 

 Pfählen, altem Holzmark u. a., wo Vegetationen von Algen, Moosen, Gras 

 gefunden werden, bieten sich günstige Bedingungen für Fortkommen von 

 Hefen. Verf. bespricht hier weiter noch eine Zafil von Fragen, über die 

 sich nicht kurz reieriren lässt, es muss dieserhalb auf die Abhandlung 

 selbst verwiesen weiden. Wehmer (Hannover). 



Hedgcock, Q. 0., Sonie of the results of three years's 

 experiments with Crown- gall. (Science N, S. XXII. 

 p. 120. 1905.) 



A brief summary is presented of the experiments and resuKs on 

 the crown-gall disease of iruit trees. '1 he disease of apple, pear^, and 

 quince is found not contagious, while on almoiid, apricot. blackberrry, 

 cherry, peach, plum, prune and possibly chestnut and walnut it is often 

 very contagious. The disease can be communicated only to a slight 

 extent (27"/<.) by diiect inoculation in apple trees. The apple cro^A;n- 

 gall appears in two types, a hard and soft gall, and in addilion a third 

 form, the hairy-root, is very common_, wl.ich is to be considered as a 

 distlnct disease. The disease of the peach^ plum^, cherry^ raspberry, 

 almond and apricot have been proved due to one and the same cause 

 by numerous carefully controlled inoculation experiments. 



von Schrenk. 



Mac Brjde, T. H., The Slime Moulds of Mew Mexico. 



(Proc. Iowa Acad. of Sciences. XII. p. 33. 1905.) 



A list of twenty five species of Myxomycetes is given collected from 

 decaylng tree tomber in mountain tops of New Mexico. Attention is 

 called that although surrounded on all sides by deserts^ the region where 

 the slime moulds were collected show all of the types usually found in 

 forests. The species listed are nearly like such as might be gathered 

 in eastern Iowa. The writer thinks that this may be explained by the fact 

 that the forests in the mountains referred to are renmantS; of the woods 

 which formerly ranged from Iowa to New Meicico and that the 

 Myxomycetes simply survived at the spot where they were collected. 



von Schrenk. 



MÜLLER-Thurgau, H., Nach vv^ eis von Saccharomyces ellipsoldeus 

 im Weinbergsboden. (Centralbl. f. Bakt. Abt. II. Band 

 XIV. 1905. p. 296—297.) 



Gegenüber einer von B. Heinze gegebenen schiefen Dar- 

 stellung (Centralbl. f. Bakt. Abt. II. Bd. XIV. 1905. p. 9—14) 

 weist Verf. darauf hin, dass der faktische Nachweis des natür- 

 lichen Vorkommens und Ueberwinterns von S. ellipsoldeus im 

 Weinbergsboden nicht von Hansen 1882, sondern von ihm im 

 Jahre 1879 geführt sei. Wehmer (Hannover). 



Maire, R., C o n t r i b u t i o n s ä 1' e t u d e de 1 a f 1 o r e m y c o - 



logique des lies Baldares. (Bull. Soc. mycol. France. 



T. XXI. 1905. p. 213—224. fig. 1-5.) 



Au cours d'une exploration d'une huitaine de jours, en avril 1005 

 ä l'ile de Mallorca, R. M a i r e a recolte une serie de Champignons 



