Notes and Brief Articles 



221 



trees are arranged in alphabetical order. Subjects of a general 

 nature are treated in the first part of the book. The author's 

 training and experience enable him to speak with authority and 

 this work may be recommended without reservation to mycolo- 

 gists, foresters and others interested in this very far-reaching and 

 important subject. 



Professor Guy West Wilson recently sent in from Clemson 

 College, South Carolina, a specimen of Daedalea juniperina, col- 

 lected on a red cedar trunk on the campus. The tree had been 

 pruned and was seriously infected with the fungus on a number 

 of the pruning wounds. This rare species of Daedalea was de- 

 scribed from specimens collected at Rockport, Kansas, and was 

 afterwards found in Missouri. Another rare fungus collected 

 by Professor Wilson at Clemson College is Coltriciella dependens, 

 which he found growing inside a rotten oak log. This species 

 had been previously known from specimens collected on decorti- 

 cated pine wood in the Carolinas and on yellow poplar wood in 

 Florida. 



Bulletin 707 of the U. S. Department of Agriculture is of 

 peculiar interest to mycologists who have charge of herbaria be- 

 cause it gives the results of numerous experiments undertaken 

 by the Bureau of Entomology with miscellaneous substances em- 

 ployed in destroying various insects. Among the substances 

 used, napthalene proved effective in preventing infestation and 

 in killing all stages of insects. Camphor did its work more 

 slowly, while red cedar chips and pyrethrum powder were only 

 moderately effective. The results here outlined support our own 

 conclusions, derived from experiments and practical experience 

 over a long period of years, that napthalene flake is the best 

 insecticide for the herbarium of larger fungi. 



In a recent paper by W. B. McDougall in The Plant World on 

 the classification of symbiotic phenomena, the following state- 

 ment appears : " Probably no one will dispute the status of lichens 

 but some may object to speaking of lichens as symbiotic phe- 



