196 THE PLANT^WORLD. 



those species representing the more important genera, for the purpose 

 of illustrating, as far as possible, all the genera of agarics found in the 

 United States. This has been accomplished except in a few cases of 

 the more unimportant ones. Nearly all of these genera, then, are 

 illustrated by photographs and descriptions of one or several species, 

 and in the more important genera like Amanita, Lepiota, Pleurotus, 

 Myce7ia, Lactarius, Rtmsula, PaxlUus, Agaricus, Copriiiiif^, etc. , a 

 larger number of species are very fully illustrated, showing stages of 

 development in many instances, and with a careful comparison of the 

 different kinds. 



Amono^ the other orders of the higher fiinj^i many genera and 



to o to •' o 



species of Polypores^ Hedgehog Fungi, Coral Fungi, Tremhling Fungi, 

 Pvff BaUs, Stinhhorns, Moreh, etc., are illustrated and described. 

 Among these such genera as Boletus, Fistulina, Polf/porus, Ilydnwn, 

 Clavaria, Tremella, Morchella, etc., come in for a large number of 

 species with beautiful photographs and careful descriptions. In making 

 the descriptions they have been drawn from studies of living specimens, 

 in many cases showing important characters of development. An 

 attempt has also been made to avoid, as far as possible, technical 

 terms, or to use but few such terms, and the descriptions are intelligi- 

 ble to one who is not a professional student of the fungi. There is some 

 progression in the use of the technical terms in the book, fewer of 

 them being employed in the first part of the book; here they are ex- 

 plained, so that the reader becomes gradually familiar with them. The 

 first few chapters are devoted to a description, in plain language, of the 

 form and characters of mushrooms, as well as the course of develop- 

 ment. In addition, there is a chapter, at the close, dealing with the 

 more technical characters, and illustrating them. 



There are chapters on the collection and preservation of the fleshy 

 fungi; how to photograph them and keep records of the important 

 characters, which often disappear in drying; on the selection of the 

 plants for the table, etc. Mrs. Rorer contributes an excellent chapter on 

 "Receipts for cooking Mushrooms", and Mr. J. F. Clark one on the 

 chemistry and toxicology of mushrooms. There are also complete an- 

 alytical keys to the genera of the agarics found in the United States, 

 and keys to the orders of the higher fungi. The glossary deals only 

 with the few technical characters employed in the book. 



We can recommend this book and confidently state that no student, 

 either amateur or professional, can afford to be without it. — F. H. K. 



