NOTES AND BRIEF ARTICLES 



Twenty-four new species and one new variety of Inocybe are 

 described by Prof. G. F. Atkinson in the April number of the 

 American Journal of Botany. 



Dr. W. C. Coker, professor of botany in the State University 

 of North Carolina, recently spent some time in the library of the 

 New York Botanical Garden looking over mycological literature 

 in connection with his work on the fungi of his state. 



The Bulletin of the Torrey Botanical Club for April contains 

 an article on " New Species of Uredineae " by Dr. J. C. Arthur, 

 the paper being the tenth of the series under this title. While 

 covering a wide range in North America, the majority of the 

 species are from Mexico and Central America where the rust 

 flora is much less known than in the North. 



After an extended study of the spore development in Philo- 

 copra coeruleotecta Rehm, H. J. Sax in the American Journal of 

 Botany for February concludes that the method of spore forma- 

 tion in the many-spored ascus is similar to that of the few-spored 

 ascus. There is no indication of a phylogenetic relationship be- 

 tween the ascus and the sporangium of the phycomycetes. 



In the January number of Phytopathology, L. M. Massey 

 claims that a dust mixture consisting of 90 parts of sulphur and 

 10 parts of arsenate of lead is more effective in the control of 

 powdery mildew of roses than a spray of lime-sulphur and is 

 much less unsightly. The mixture acts both as a fungicide and 

 an insecticide and is easier to handle than pure sulphur dust since 

 the arsenate of lead keeps the sulphur from packing. 



The Annals of the Missouri Botanical Garden for February 

 contains a monograph of the genus Rhizopogon for North Amer- 



222 



