252 EXPERIMENT STATION EECOKD. [Vol.37 



The germinatiwi of the winter spores of Plasmopara viticola, L. Ravaz 

 and G. Vebge {Bui. Soc. Path. Yeg. France, 1 {1914), ^'o. 1, pp. 5i-54).— This 

 Is a summary of the development and existing state of knowledge regarding 

 the autumn, winter, and spring behavior of P. viticola on Vitis vinifera. 



The present status of the coconut bud rot disease, J. R. Johnston {Habana: 

 1916, June, pp. 8, fig. 1). — The author states that coconut bud rot is an internal 

 disease of the terminal bud. This fact precludes the employment of pruning 

 except in the initial state (which it is practically Impossible to determine), 

 and also the external use of germicides. The slow groT\th of the tree, more- 

 over, practically prevents the employment of breeding for resistant varieties. 



In Cuba, for which somewhat complete records have been obtained and sum- 

 marized herein, the disease was destructive as early as 1886. It is also said 

 to have been reported as causing, or as having caused, loss in British Guiana, 

 Jamaica, Trinidad, the Cayman Islands, and the lesser Antilles, but its presence 

 is denied or doubted in some other localities which are mentioned. 



Fungi parasitic on the tea plant in northeast India, V, VI, A. C. Tx^nstall 

 (Indian Tea Assoc, Set. Dept. Quart. Jour., 1915, Xos. 1, pp. 12-16; S, pp. 

 5S-56). — Continuing the series of reports previously noted (E. S. R., 33, p. 

 650), the author states that Erobasidium vexans, the cause of blister blight, 

 attacks leaves and stems and, in general, only young succulent growths of 

 tea plants and no Jungle plants so far as known. The spores die after two 

 or three days and the fungus a little later. It Is thought, therefore, that the 

 fungus has no dormant stage. On many tea gardens in Assam the disease dies 

 out spontaneously. In the hilly districts, bushes in damp, shady places may 

 show the blisters at any time of the year. Under favoring conditions, the 

 disease may spread with great rapidity. 



Fomes lucidus Is a common cause of root disease In tea bushes. Pestalozzia 

 palmarum causes a gray blight of alder leaves and Is sometimes found on the 

 stems. The fungus is common in the jungle on both dead leaves and living 

 plants, but It does little harm so long as the plants are healthy. A dieback 

 of weakened plants Is due to at least one species of Gloeosporium. A closely 

 similar disease ascribed to Colletotrichum camcUicr Is prevented by .<?prays and 

 soil improvement. Internal root dltsease is ascribed to various species of 

 Diplodla. the commonest being Botryodiplodia theobrom<r, a fuller report of 

 which is to be given later. 



Tumors on Chrysanthemum frutescens, R. Laubebt {Mitt. K. Biol. An-st. 

 Land u. Forsttc, No. 15 {1914). P- IT)- — The author notes the occurrence on 

 C. frutescens chrysaster, near Berlin, of enlargpments or outgrowths similar 

 to those designated in America as crown gall, and supposedly due to infection 

 with Bacterium tumcfaciens. 



Canker of oleander, P. Hariot {Bui. Soc. Path. Veg. France, 2 {1915), No. 1, 

 pp. 38-40, fig. 1). — Briefly de.scribing a disease of oleander, which is said to 

 attack any organ thereof, causing enlargements which are described, the author 

 mentions approvingly the views of Tonelll, who supposed the trouble to be of 

 bacterial causation and to be favored as to transmission by the acti>ity of 

 Insects (E. S. R.. 29, p. 156). 



A new fungus parasitic on Ceara rubber trees, F. Vincens {Bui. Soc. 

 Path. Teg. France, S {1916), No. 1. pp. 22-25, figs. 6). — A brief account is given 

 of a disease of Manihot glaziovii observed in 1913 north of the bay of Rio 

 Janerlo. The causal fungus, which Is considered to be a new species. Is de- 

 scribed as Haplographium manihoticola. 



Diseases of Hevea brasiliensis in the Amazon Valley. — I, Leaf diseases, 

 II, Trunk diseases, F. Vincens {Bui. Soc. Path. Veg. France. 2 {1915), Xo. 1. 

 pp. 11-27, 54-6S, pis. S, figs. 7). — Fungi noted In connection with diseases or 



