165 



guish the 



absence of the median line, as well as the circular definite pseudo- 

 nodule, which distin- 



6". pulchella 

 of Klitzing from all 

 the other species of the 

 genus, he classifies as a 

 new variety. One end 



of the valve will be seen to have an extraordinary and partly 

 constricted bent apex, while the other appears complete in its 



formation. 



/ 



found in the works of the following authorities: Van Heurck, 



W 



journal of Mj- 



^> 



E. A. SCHULTZE. 



Volume v, No. i of this pubU- 



cation appears as the quarterly bulletin of the section of vegetable 

 pathology, U. S. Department of Agriculture, March, 1889, pre- 

 pared under the direction of the Secretary of Agriculture by B. 

 T. Galloway, chief of the section. It is a pamphlet of 50 pages, 

 and is embellished by 8 plates, illustrating papers by Professors 

 Kellerman and Swingle, Miss Knowles and Mr. Ellis, Other 



botanical contributions are by Professor Halsted and Mr. F, W. 

 Anderson. 



Reviews of Foreign Literature. 



!/ 



(8 vo., 



pp. 347, London, 1889). 

 Under the above title M 



■. C. B, Plownght, r.L.S., has pre- 

 pared a book of three hundred and fifty pages containhig much 

 valuable matter concerning rusts and smuts — two groups of 

 fungi specially destructive to cultivated crops. Full descriptions 



of rusts and smuts are given, and 



an ac- 



of the British species 

 count of their life history, as far as this important point has been 

 detern)ined. There are chapters upon mycelium, spermagonia, 

 a^cidiospores, uredospores, teleutospores, etc. Following these 

 are others, treating of heteroecism, spore-culture, artificial infec- 

 tion of plants, and two indices, one of the species and another of 

 the host plants. The fact that members of the Uredineas' ma}^ 

 have more than one form, living, possibly, in one form upon one 



