Pflanzenkrankheiten — Floristik etc. 639 



fähig-keit der Spritzflüssigkeit, sehr leichte Spritzarbeit, Haftbarkeit 

 der Spritzflecken sehr gross, ausgezeichnete fungizide Wirkung 

 (in südlichen Gegenden, z. ß. Görz, wo Verf. die Versuche ange- 

 stellt hat, eine I1/2— 2"/oige Brühe), dazu um lö^/o billiger als Kupfer- 

 vitriol (vor dem Kriegsausbruche). Das neue Mittel ist ein ernst 

 zu nehmendes Ersatzmittel für Kupfervitriol bei der Bekämpfung 

 von Plasmopara viticola De ßary. Matouschek (Wien). 



Regamey, R., Sur le cancer chezlesvegetaux. (C. R. Ac. Sc. 

 Paris. CLIX. p. 747—749. 30 novembre 1914.) 



Des fragments de tissu, preleves aseptiquement ä l'interieur de 

 tumeurs proliferantes d'un jeune Chene, donnerent des cultures 

 d'un microbe bien different du Bacteriiim tuniefaciens E. Smith. 

 C'est un vibrion courbe portant un eil dans la concavite, Microspira 

 carcinopaeiis Regamey. L'inoculation au Chene fut sans resultat; 

 eile produisit chez Tropaeoliun tnajus et Hedera Helix, des excrois- 

 sances locales et des tumeurs secondaires qui s'y relient par des 

 cordons de cellules alterees. On trouve les parasites en petit nombre 

 ä l'interieur des cellules. P. Vuillemin. 



Salmon, E, S. and H. Wormald. A new Disease of Apple 

 ßuds. (Notes on some Fungous Diseases, in Journ. South Eastern 

 Agric. Coli. Wye. N«^'. 22, 1913. p. 450-452, issued Dec. 1914.) 



The authors record further cases of a disease of apple buds 

 which was first noticed in 1912, and appears to be seriously increa- 

 sing. In all cases a species of Fusarium was found to be present. 

 From specimens submitted to Barker the "Fruit Blossom Bacillus" 

 (see Barker, Card. Chron. May, 1913, p. 287) was also isolated, and 

 it is suggested by Barker that possibly the Fitsarhmi is the cause 

 of the injury described by him, and the bacillus only accidental. 

 Further investigations are required. E. M. Wakefield (Kew). 



Smith, G.. Infection Experiments with the Potato "Blight" 

 Fungus. (Journ. South Eastern Agric. Coli. Wye, Kent. N". 22, 

 1913. p. 494—496. issued Dec. 1914.) 



The spores of Phytophtora infestans growing on Potato, in 

 Br itain, are capable of infecting Solanum aviculare, as recorded 

 by Mc Alpine for Australia, but contrary to Mc Alpine's results 

 no infection was obtained when the spores were sown on Tomato 

 (leaf and fruit). Negative results were also obtained with other 

 Solanaceae, including Solanum dulcamara, which is usually-given 

 as a hosr in text-books. One case is recorded, however, where 

 spores obtained from S. dulcamara produced infection on the same 

 host, and also grew on cut slices of potato, but failed to infect 

 Potato leaves. E. M. Wakefield (Kew). 



Anonymus. Diagnoses Africanae. LXII. (Kew Bull. Mise. 

 Inform. W. 1. p. 44—49. 1915.) 



The new species described are: Soyauxia florihunda,\{Vi\.c\iin'&ox\^ 

 Tricalysia reßexa, Hutchinson, Lightfootia cartilaginea, Scott, Sido- 

 roxylon Aylmeri, Scott, Bnissea Lane-Poolei, Stapf, Pleiocarpa tricar- 

 pellata, Stapf, Vitex keniensis, Turrill, Phyllanthus flacourtioides , 

 Hutchinson, Torulinium angolense, Turrill. E. M. Jesson (Kew). 



