218 



Mycologia 



An important paper on the Parasitism, Morphology, and Cytol- 

 ogy of Cronartium rihicola, by R. H. CoUey, appeared in the 

 Journal of Agricultural Research for December 23, 1918. The 

 article is illustrated with several halftones and many beautiful 

 microscopic drawings. 



In a paper on Arcangeliella, Gymnomyces, and Macowanites in 

 North America, contributed by Zeller and Dodge to the Annals 

 of the Missouri Botanical Garden for February, 1919, Arcange- 

 liella caudata, Gymnomyces Gardneri, and Macoivanites echino- 

 sporus, all from California, are described as new. 



" Winter Botany " is a handy little volume written and pub- 

 lished by Professor William Trelease in 1918, containing 394 

 pages of description and numerous text figures, enabling one to 

 identify hardy plants in the winter season. This volume will be 

 helpful especially to mycologists who are collecting fungi in the 

 autumn and spring. 



A revision of the Argentine Laboulbeniales by Spegazzini ap- 

 peared in the Anales del Museo Nacional 29: 445-688. 1917, a 

 copy of which has just been received at the Garden library. 

 The treatment of this group is very extensive and thorough, with 

 carefully drawn descriptions and excellent text figures of 213 

 species, many of which are new. 



A bulletin on the potato wart disease mentioned in Mycologia 

 for January has recently been prepared by C. R. Orton and F. 

 D. Kern of the Pennsylvania State College. The authors recom- 

 mend a strict quarantine to prevent this very serious disease from 

 being introduced into other localities. 



A very extensive paper on the biology of Polyporus pargamenus 

 Fries, by Arthur S. Rhoads, appeared last year as Technical Pub- 

 lication No. II of the New York State College of Forestry. In 

 it this extremely common and widely distributed fungus is thor- 

 oughly discussed, described, and figured. The paper contains 197 

 pages of text and 31 plates. 



A. 



