250 



Mycologia 



belonging to Macrophoma, Ceratostomella and Dematiiim, are in 

 symbiotic relation with certain insects that provide them favor- 

 able conditions for development in return for substantial nour- 

 ishment. 



The Naples Table Association for Promoting Laboratory Re- 

 search by Women hereby announces the offer of a fifth prize of 

 one thousand dollars for the best thesis written by a woman, on 

 a scientific subject, embodying new observations and new con- 

 clusions based on an independent laboratory research in biological, 

 chemical, or physical science. For further information address 

 the secretary, Mrs. A. D. Mead, 283 Wayland Avenue, Provi- 

 dence, R. L 



Mr. C. W. Edgerton has recently made a careful study of the 

 bean anthracnose in Louisiana (La. Agric. Exper. Sta. Bull. 119: 

 1-55- P^' I-I4- 1910). He finds that the fungus will not tol- 

 erate a continued high temperature and is consequently killed 

 out during the summer months in that latitude. Other micro- 

 organisms in the soil, also, especially a species of Fitsarium, 

 easily gain entrance to the diseased seed and either rot the seed 

 entirely or run out the anthracnose in the spots. These two 

 natural factors, heat and micro-organisms, are very important 

 in the control of the disease and may be used to greatly lessen 

 its ravages in Louisiana. 



The Bulletin from the Laboratories of Natural History of the 

 State University of Iowa (6 : 41-219) contains a treatment of the 

 Iowa Discomycetes by Mr. Fred J. Seaver. This paper stands 

 in part as a revision and in part as an extension of the work 

 entitled ''The Discomycetes of Eastern Iowa" published by the 

 same author in volume five of said bulletin. The work con- 

 sists of ninety-one pages of text with a record of one hun- 

 dred and twenty species, and forty-one plates illustrating ninety- 

 four species. The paper contains no new species and few new 

 combinations, but five species are recorded which have been de- 

 scribed and based on Iowa material since the publication of the 



Discomycetes of Eastern Iowa." The paper is offered as a. 

 contribution from the New York Botanical Garden, no. 133. 



