94 



THE FERN BULLETIN 



The University of Minnesota has recently issued 

 a volume of more than 300 pages devoted to the 

 Myxophyceae. It is written by Josephine Tilden, As- 

 sistant Professor of Botany in the University, and is 

 entitled "Minnesota Algae." The title, however is 

 somewhat misleading, since the book discusses only 

 the blue-green algae or cyanophyceae, and takes in all 

 these plants from the Arctic regions to Wes: Indits 

 and the Hawaiian Islands. Each species is described, 

 its synonomy and range, so far as known given and 

 most of the species are illustrated. As interpreted by 

 the author the blue-green algae consist of two orders 

 Coccogoneae and Hormogoneae, the first containing 

 two families with twenty-five genera, the second five 

 families and forty - six genera. These plants 

 are little known to the average plant student 

 and all require the compound microscope for 

 study. The present work will be exceedingly useful 

 to those working with them. It appears to be the in- 

 tention of the University to issue other volumes of 

 similar scope devoted to the green algae. 



The British Fern Gazette completes its first year 

 of existence with the number for June, 1910. Each 

 number has maintained the high character of the first 

 issue and the whole forms a volume of which the Brit- 

 ish Pteridological Society and its editor may well be 

 pioud. The last issue contains a list of the members 

 of the Society, from which we note that there are 112 

 members, nine of whom reside in the United States 

 or Canada. The price of the Gazette, which is issued 

 quarterly, is five shillings (about $1.25) and includes 

 membership in the Society. Samples may be obtained 

 by addressing the editor, C. T. Druery, 11 Shaa Road, 

 Acton W., London. 



