BOTANY. 507 



dinece, Peronosporew, and Uredinem. The Erysiphei of the 

 United States have been treated in an article, by Professor 

 C. E. Bessey, in the seventh biennial report of the Iowa Ag- 

 ricultural College; and the Bulletin of the Minnesota Acade- 

 my of Natural Sciences contains a notice of the Mycological 

 Flora of Minnesota, by Dr. A. E. Johnson. An addition to 

 a paper, by Mr. M. C. Cooke, on the Valsei of the United 

 States, is to be found in the Proceedings of the Academy of 

 Natural Sciences of Philadelphia, in a paper by Mr. W. C. 

 Stevenson, who gives measurements of spores of some of the 

 species of the Schweinitz collection. A synopsis of the Myx- 

 ornycetes of the United States, by M. C. Cooke, arranged from 

 Rostafinsky's monograph of the Myxoniyeetes, has been re- 

 printed from the Annals of the Lyceum of Natural History 

 of New York. 



New American fungi are described by Von Thumen in the 

 Torrey Bulletin, Flora, and the Naturaliste Canadien. Lists 

 and descriptions of new Californian species, collected princi- 

 pally by Dr. Harkness and Mr. Moore, have appeared in Gre- 

 villea, in articles by Cooke, Plowright, and Philips. In the 

 same journal is a continuation of the descriptions of New 

 Jersey fungi, by Cooke and Ellis, with illustrations of some 

 of the species, and diagnoses, by Mr. Cooke, of the fungi is- 

 sued in the first two fasciculi of "Funs;i Americani." 



During the year two series of dried specimens of American 

 fungi have been presented to the public. The first, of which 

 two fascicles have already been issued, is entitled " Fungi 

 Americani," and includes two hundred specimens collected 

 in Florida and South Carolina by Mr. H. W. Ravenel, and 

 published by him in connection with Mr. M. C. Cooke. The 

 series will probably be completed in two more fascicles. The 

 second set of fungi is prepared by Mr. J. B. Ellis, under the 

 title of "North American Fungi." . One century has already 

 been issued. The work is to include one thousand species 

 from the temperate parts of North America, and Mr. Ellis 

 will be aided by several of the mycologists of the United 

 States. 



Vegetable Anatomy and Physiology. 



The Natwxdist contains several articles by Professor "W. 

 J. Beal. One, entitled How Thistles Spin, has several fig- 

 ures of the hairs of Cirsium altissimum. In a second article 



