220 



Mycologia 



fungi. There are many illustrations, two of them being colored 

 plates. Banker's nomenclature is followed in the main. Three 

 species are described as new, Hydnellum ferriigipes, Hydnelhim 

 caroliniamim, and Phellodon Cokeri. 



A popular article on cedar rust, by Dr. F. D. Fromme, of the 

 Virginia Agricultural Experiment Station, appeared in the report 

 of the twenty-third annual session of the Virginia State Horti- 

 cultural Society. Dr. Fromme says : " Cedar eradication is the 

 cheapest form of orchard insurance you can buy. The cost on 

 the average is less than the cost of a single spray application. Cut 

 down the cedars and you will reahze the benefits. There are 

 thousands of cedars waiting for the axe." 



The development of Stropharia cpimyces is the subject of an 

 article by W. B. McDougall in the March number of The Botan- 

 ical Gazette. This very interesting fungus has been placed in 

 several genera and the fact that it always occurs as a parasite on 

 another mushroom lends added interest to it. Regarding its 

 identity with Pilosace algeriensis, as suggested by . Harper, the 

 author says : " While it is entirely possible that this may be true, 

 our plant cannot belong to Pilosace, as we understand that genus, 

 since it has an annulus and the lamellae are not free." 



Several parts of Dr. Kauffman's work on the fungi of Michigan 

 have recently appeared as reprints from Publication 26 of the 

 Michigan Geological and Biological Survey. The genera treated 

 in these reprints are Cortinariiis, Lepiota, Clitocyhe, Hygrophorns, 

 Collyhia, Russula, Pholiota, Amanita, and Coprinus, the last genus 

 having been contributed by Professor Pennington. The plates to 

 accompany Dr. Kaufifman's work will not appear until the entire 

 publication is issued. These papers contain few new species ex- 

 cept in the genus Cortinariiis, to which about a dozen are added. 



The " Manual of Tree Diseases," by Dr. W. H. Rankin, has 

 recently been issued by The Macmillan Company. It is a volume 

 of about 400 pages, illustrated with 70 figures. The various dis- 

 eases are classified under the trees on which they occur and the 



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