380 Algae. — »""ungi, ßacteria und Pathologie. 



Novembre ä fin Janvier, avec temperature variant de +14 

 ä +40. 



Mr. Pavillard conclut avec Jörgensen „Tacquisition 

 d'une conception plus claire et d'une meilleure connaissance 

 des phenomenes nombreux et remarquables offerts par notre 

 plankton littoral seul, reclame une somme de travail encore 

 süffisante pour plusieurs annees". 



En somme, l'excellent memoire de Mr. Pavillard fait le 

 plus quand honneur ä celui qui l'a public et au professeur 

 Flahault, le maitre eminent et sympathique qui l'a inspire. 



P. Hariot. 



Anonymus. A conifer disease. (Journal of the Board of 



Agriculture. Vol. XII. June 1905. p. 177—178.) 



Herpotrichia nigra is recorded as kiliing spruce seedlings in York - 

 shire. Tlie leaves are attacked and killed by tlie fungus, but instead of 

 falling when ttiey are dead^, tliey are bound together by mycelium and 

 remain as a compact brown mass. The fruit of Ihe fungus and also 

 minute sclerotia are produced on the leaves. A. D. Cotton (Kew), 



Anonymus. A Mushroom Disease. (Journal of the Board 

 of Agriculture. Vol. XII. April 1905. p. 47—49. 1 text 

 figure.) 



An account of a Mushroom disease caused by Hypomyces perni- 

 cosus. The mycelium of the parasite grows up with that of the Mush- 

 room and the latter instead of gradually developing a pileus and stem, 

 becomes an irregularly shaped monstrous mass. Sometimes a small, de- 

 formed cap is present^ but as a rule the entire mass of the diseased 

 Mushroom consists of a much swollen stem. 



Remedial measures are suggested. Badly infected houses should 

 when empty be thoroughly washed out with a Solution of the Cu SO4. 



A. D. Cotton (Kew). 



Anonymus. A new disease inPotatoes. (Journal of the 

 Board of Agriculture. Vol. XII. April 1905. p. 37—38.) 



Records a potato disease caused by Sphaerella tabifica. This para- 

 site, in the case of beet and turnips^ first attacks the leaves and then 

 passes down the stem to the roots; it appears to pursue the same ccurse 

 in the potato plant where it finally attacks the tubers. 



A. D. Cotton (Kew). 



Cruchet, Paul, Quelques Urädine'es de la Vallee de Binn, 

 r^coltees lors de l'excursion de Juillet 1903. 

 (Bulletin de la Murithienne, Societe valaisainc des Sciences 

 naturelles. Fascicule XXXIII. Annee 1904. Sion 1905. 

 8". p. 50-52.) 



Das Binnenthal, ein südliches Seitenthal des Oberwallis, be- 

 kannt durch seinen Mineral- und Pflanzenreichthum hat dem Verfasser 

 in Verbindung mit Herrn D. Cruchet und E. Mayor auch eine gute 

 Ausbeute an interessanten Uredineen geboten, unter denen erwähnt seien: 

 Puccinia grisea Strauss, P. Pozzii Semadeni, P. Asteris alpini, P. Pul- 

 satillae. Ed. Fischer. 



