DISEASES OP PLATsTTS. 345 



in which it was produced, the species used, and the method of manufacture. 

 Data are also given on the exports and imports of pulp wood and of the pulp 

 wood exported from the Dominion and the several Provinces in an unmanufac- 

 tured state. Comparative data are given for 1911. The report contains a map 

 showing the location of the pulp mills of the Dominion. 



Forestry literature published in 1912 (Skogsvdrdsfor. Tidskr., Fackafd., 

 19 IS, No. 3, pp. 242-257). — This bibliography includes publications on the 

 various phases of forestry published in the English, French, German, and 

 Scandinavian languages. 



DISEASES OE PLA]!n:S. 



Diseases of cocoes and other crops, S. F. Ashby {Bui. Dept. Agr. Jamaica, n. 

 sei\, 2 (1913), No. 6, pp. 150-155). — The author describes some diseases of 

 cocoes, coconuts, cacao, coffee, and sugar cane. 



The disease of cocoe previously noted and attributed to Hormiscium colo- 

 casice n. sp. (E. S. R., 2S, p. 746) is described, and the author states that later 

 investigations have shown that the fungus was not properly identified. He 

 proposes for it the name Vasculomyces xanthosomce n. sp. 



The coconut diseases described are the leaf diseases due to Sphcerella zonata 

 and Pestalozzia sp., a disease of leaf bases and terminal buds due to Lasiodi- 

 plodia theohromce, and a disease of the trunks caused by Thielaviopsis paradoxa. 

 Other diseases described are Cephaleurus mycoidea and L. theohromw on cacao, 

 S. coffeicola on coffee, Leptosphceria sacchari and Cercospora sacchari on sugar 

 cane, and a disease of date palms due to Oraphiola phoenicis. 



Rot bacteria associated with diseases of tropical plants, J. A. Honing 

 (Cenibl. Bakt. [etc.]. 2. AM.. 37 {1913), No. 1^-16. pp. S64-3S4, pi. 1, figs. 2).— 

 The author has isolated and described a number of rot bacteria that were 

 found associated with diseases of tobacco, sesame, peanuts, teak, and Polygala 

 hutyracea. In all, 16 species of bacteria were isolated, and the following new 

 species are described : Bacterium stalactitigenes, B. langkatense, B. deliense, 

 B. sumatranum, B. patelliforme, and B. rangiferimum, on tobacco ; B. medanense 

 on peanut ; B. aurantium-roseum on tobacco and peanut ; B. scMijfneri on 

 tobacco, sesame, and P. butyracca; B zinnioides on tobacco, peanut, and sesame; 

 and Corynebacterium piriforme on tobacco and teak. Technical descriptions of 

 all the organisms are given. 



A new species of Sterig'matocystis, G. Bainiee and A. Sartoby {Ann. MycoL, 

 11 {1913), No. 1, pp. 25-29, pis. 3). — The authors discuss a fungus studied by 

 them which is classed as 8. sydowi n. sp. It is said to prefer banana, carrot, 

 and licorice, growing also on potato and several artificial substrata on addition 

 of small quantities of glycerin or acids. Its optimum growth is reached at or 

 near 2,8° C, growth ceasing entirely at 41". 



Myrioconium scirpi n. g. and sp., C. Febdinandsen and O. Winge {Ann. 

 MycoL, 11 {1913), No. 1, pp. 21-2^, figs. 5).— A study made of the fungus for- 

 merly classed as Sphacelia scirpicola leads the authors to the conclusion that 

 this may be taken as the type of a new genus, this form receiving the name 

 M. scirpi. 



The extension of Puccinia geranii in geographic-biological races, P. Mag- 

 nus {Ber. Dcut. Bot. GeselL, 31 {1913), No. 2, pp. S3-88, pi. 1).—As a result of 

 studies reported to the author or made by him on P. geranii in widely separated 

 regions, the conclusion is reached that this is a well characterized species mor- 

 phologically, slight morphological differences appearing only in southern Asia. 

 In particular localities it forms constant biological races, confining itself to 

 certain hosts. This is thought to be connected with its forming each year but 



