News and Notes 



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In Phytopathology for June, P. Spaulding gives an account of 

 the rusts occurring on the hemlock spruce ; and also reviews three 

 important papers by Dr. Ernst Munch, of Munich, on the rela- 

 tions of certain forest fungi to their hosts, including approved 

 methods of inoculation. 



The first number of the Pomona College Journal of Economic 

 Botany, published quarterly by the department of biology of 

 Pomona College, at Claremont, California, contains an article by 

 E. O. Essig on the wither-tip disease of citrus trees caused by 

 a species of Collet otrichum. 



F. Theiszen has recently published through the Royal Acad- 

 emy of Science at Vienna a handsomely illustrated pamphlet of 

 38 pages on the known Polyporaceae of southern Brazil, with in- 

 teresting notes and citations. The list of 146 species contains 

 a provisional new one, Polyporus recurvaUis, described by the 

 author, and Porta bicolor, described as new by Bresadola. 



The toxicity of tannin is treated rather comprehensively by 

 Cook and Taubenhaus in a recent bulletin of the Delaware Col- 

 lege Experiment Station. This investigation has an important 

 bearing on problems connected with immunity from diseases 

 caused by fungi. In this connection, it is interesting to note 

 that the chestnut canker has selected for its own particular use a 

 tree containing an unusually large percentage of tannin. 



Pyro polyporus Calkinsii, a large ungulate species found on 

 living trunks of live-oak in southern Florida, was collected May 

 5, 191 1, by Dr. H. D. House on a living trunk of Quercus nigra 

 at Lake Catherine, Onslow County, eastern North Carolina. The 

 species doubtless causes heart-rot, after the manner of P. ignia- 

 rius, hence this extension of range and the discovery of a new 

 host is of value to the forest pathologist. 



