280 Eumycetes. — Pflanzenkrankheiten. 



Zeller, S. M. and C. W. Dodge. Arcangeliella, Gymnomyces, and 

 Macowanites in North America. (Ann. Mo. Bot. Gard. VI. p. 

 49—59. f. 1—3. Mar. 1919.) 



Contains as new: Arcangeliella caudata, A. Soderstromii {Hyd- 

 nangium Lagerh.), Gymnomyces Gardneri, and Macowanites echino- 

 sporus. Trelease. 



Zeller, S. M. and C. W. Dodge. Rhisopogon in North Ame- 

 rica. (Ann. Mo. Bot. Gard. V. p. 1—36. pl. 1—3. Feb. 1918.) 



Contains as new: Rhisopogon maculatus, R. viridis, R. panno- 

 sus, R. diplophloeus, R. pachyphloeus, R. occidentalis , and Hydnan- 

 giutn aurantium (R. aurantius Harkness). Trelease. 



Osner, G. A., Additions to the list of plant diseases of 

 economic importance in Indiana. (Proc. Indiana Ac. Sc. 

 p. 327—332. 1916, issued 1917.) 



Supplementary to "A list of plant diseases of economic impor- 

 tance in Indiana" by F. J. Pipal, in the Volume for 1915 of the 

 same series. Trelease. 



Rands, R. D., Alternaria on Datura and potato. (Phytopatho- 

 logy. VII. p. 327-338. f. 1—4. Oct. 1917.) 



Contains the new name Alternaria crassa (Cercospora crassa Sacc). 



Trelease. 



Rankin, W. H„ Manual of tree diseases. (New York, The 

 Macmillan Company. 1918. XX + 398 pp. 70 ff. Price / 2,50.) 



One of the Rural Manuals issuing under the editorial manage- 

 ment of L. H. Bailey — of which the Manual of Fruit Diseases, 

 by Hesler and Whetzel, is one. 



The first four chapters are given over to a general discussion 

 of types of disease or injury to trees, — seedlings, foliage, body 

 and branch, and root troubles. A chapter each is devoted to tree 

 surgery and the use of fungicides. The remaining 28 chapters give 

 an account of the diseases of as many kinds of shade and forest 

 trees, arranged alphabetically under their common names, Glossa- 

 ries, bibliographic lists, and an index complete the volume. 



Trelease. 



Rose, D. H., Blister canker of apple trees: a physiological 

 and Chemical study. (Bot. Gaz. LXVII. p. 105—46. f. 1 — 10. Feb. 

 1919.) 



Referring to the disease caused by Nummularia discreta. 



Trelease. 



Rose, D. H., Blister spot ofapples and its relation to a 

 disease of apple bark. (Phytopathology. VII. p. 198—208. f. 

 1-3. June 1917.) 



Contains description of the causative organism, Pseudomonas 

 papulans, n. sp. Trelease. 



