NEWS AND NOTES 



The black canker of the chestnut tree, said to be due to the 

 fungus, Mycelophagus Castaneae, which attacks the young roots 

 and their mycorrhiza, has recently caused severe losses in France. 

 The use of oak and Japanese chestnut stock has been suggested 

 as a means of control. 



Arnaud and Foex have discovered the perithecia of the oak 

 Oidium (Compt. Rend. 154: 124-127. 1912) and they refer the 

 fungus to Microsphaera quercina. 



An expert examination by C. Wehmer of structural timbers 

 attacked by dry rot has revealed the presence in many instances 

 of Coniophora cerehella and Poria vaporaria associated with 

 Merulhis lacrymans. 



Part 3, volume 7, of North American Flora, by J. C. Arthur 

 and F. D. Kern, appeared April 15, 1912. Eighteen genera of 

 plant rusts are treated in the 108 pages, the American species of 

 Gymnosporangmm alone numbering 32 and of Nigredo {Uro- 

 myces) 83. 



Professor Bruce Fink, of Miami University, Oxford, Ohio, de- 

 sires to see fresh material in abundance of species of the Colle- 

 maceae collected in various parts of New York State. This 

 group of lichens is greatly in need of careful modern taxonomic 

 treatment and Professor Fink will devote much of his time to it 

 during the next two years. 



The results of morphological and physiological researches on 

 the genus Coprinus, by J. R. Weir, under the direction of Profes- 

 sors Goebel and Loew, were published in Flora in 191 1, The 

 paper comprises 60 pages of text and 25 figures, 



223 



