Notes and Brief Articles 



57 



Dr. Fairman is a practising physician and became interested in 

 these fungi because of the connection of some of them with 

 human diseases. 



Professor Bruce Fink wrote me, August 29, from Conway, 

 Kentucky, where he spent the summer : " The woods are full of 

 fleshy fungi, as we have had wet weather. On August 21, I 

 picked up a strange fungus, which I suppose is a Cyclomyces. 

 It was growing at the base of an old stump in the woods. I 

 found one somewhat like it near here several years ago. The two 

 are the only ones I have collected." A specimen sent for the 

 Garden herbarium proved to be the rare Cycloporus Greenei, as 

 Professor Fink suggested. 



A bacterial canker of poplar, caused by Micrococcus populi, 

 has become a veritable scourge in the valley of the Oise and 

 neighboring valleys of France. It attacks the stem and branches 

 of seedlings and the trunks of older trees. Treatments are pre- 

 ventive only, and include selection of stock and locality, destruc- 

 tion of all insects feeding on the poplar, and destruction of all 

 diseased trees or parts of such trees. 



Professor Buller has published in the Transactions of the 

 British Mycological Society for September, 1920, an interesting 

 account of the way in which the red squirrel of North America 

 collects mushrooms and stores them up in late autumn for winter 

 use. They are either hidden away in quantity in holes in tree 

 trunks, in crows' nests, etc., or placed in the forks of branches, 

 where they dry quickly and may be used when desired. 



A circular on Potato Wart distributed by the U. S. Department 

 of Agriculture in October, 1920, reviews what was previously 

 known regarding this very serious disease' and adds information 

 recently obtained by observation and experiment. A general dis- 

 cussion of the subject by Lyman is followed by special discus- 

 sions of susceptible varieties and new hosts contributed by Kunkel. 



