BOTANY. 487 



reae, Notes on Western Uiediiica', New Western Urediiieu';" l)e Toiii, 

 " Revision of tbe Genus Doassausia ; " Forster, "Agarics oi" the United 

 States, genus Panns ; " Panimel, "Some Mildews of Illinios." 



" Tlie growtli of Tulostoniauiaminosuni " and "Ash-rust," by Bessey, 

 have appeared in Am. Nat., xxi ; "Cliaracter of Injuries produced by 

 Parasitic Fungi upon the host Plants," by Seymour (Am. Nat., xxi); 

 "^l^^cidium on Juniperus Virginiana," by Farlow (Bot. Gaz., xii) ; " Uii- 

 ciiiuhi polyclueta B. and C," by Tracy and Galloway {I. c, xii) ; " Iowa 

 Peronospore:e and a dry season," by Halsted (/. <?., xii) ; " The identity 

 of Podosphiiera minor Howe, and Microsphiera falvofulcra Cooke," by 

 Miss M. Merrey {I.e., xii) ; "The Mycologic Flora of the Miami Valley, 

 Ohio," by Morgan (Journ. Cin. Soc. Nat. Hist., x) ; "Contributions to 

 the Botany of the State of New York," by Charles H. Peck (Bull. N. Y. 

 State Mus. Nat. Hist., vol. i. No 2); the Bulletin from the Botanical 

 Department Iowa State Agricultural College contains several short ar- 

 ticles on Fungi by Professor Halsted ; " Fungi of the Pacific coast," by 

 Harkness (Bull. Cal. Acad. Sci.) ; " Polyporus sanguineus and other 

 Fungi of the White Cedar," by P. H. Dudley (Journ. N. Y. Mic. Soc). 



A few of the pajiers in foreign periodicals are : Trail, " Revision of 

 Scotch ShpreropsidefB and Melauconiea' " (Scotch Nat, July 18, 18S7) ; 

 Monten, " Ascomycetes observ aux enverons de Liege" (Bull. Soc. Roy. 

 Bot. d Belgique); Bornet, "Du Parasitisme der Tonfdes" (Rev. Mycol., 

 1887); Barclay, "Descriptive list of Uredinea^ in the neighborhood of 

 Simla, Western Himalaya" (Journ. Asiatic Soc. Bengal, lvi). In Grev- 

 iliea Cooke has several articles: "New Australian Fungi," " New Brit- 

 ish Fungi," " Some Exotic Fungi." Massee has also an article {I. c.) 

 on " British Pyrenomycetes." Points in the comparative anatomy of 

 LV6?<7/>?<?a' are presented by Dietel in Bot. centralbl xxxii; Classifica- 

 tion of Agaricincw is taken up by I'otouillard (Morot's Journ. d Bot., ii) ; 

 Polymorphism of the Hyphomycetes^ by Gasperini (Atti Soc. Tosc. Nat., 

 Ti) ; " On the type of a new order of Fungi," by Massee (Journ. Roy. 

 Mic. Soc, 1888, pt. 2) ; " Fungi of Finland," by Rostrup (Bot. Tidss- 

 kr., XV); "Experimental Observations on certain British Hetero^cious 

 Uredinea'," by Plowright (Journ. Linn, Soc Lond. xxiv); "Revision 

 of the genus Bovista," by Massee (Journ. Bot., xxvi) ; " Fungi Japonic! 

 Nonnulli," by Spegazzine and Ito (Journ. Linn. Soc. Lond., xxiv). 



DISEASES OF VLANTS. 



In speaking of the fungus diseases of jdants under a separate head- 

 ing the impression should not be conveyed that they diifer from fungi 

 in general. It is simply a convenient way of treating of those forms 

 that are especially injurious to cultivated plants. The extent of the 

 annual injury done to agricultural interests by the attacks of parasitic 

 fungi is little appreciated by the community at large. Even when it 

 is understood that the injury is caused by parasitic plants, so little is 

 known of their nature and conditions of growth that no very effective 



