September, 3007] Mycological Bulletin No. 81. 355 



Hydnum ochraceum — now given as Steccherinum ochraceum. 

 Hydnum parasiticum — now given as Steccherinum strigosnm. 

 Hydnum plumarium — now given as Steccherinum ochraceum. 

 Hydnum pkmiarium — now given as Steccherinum phnnarium. 

 Hydnum pulcherrimum — now given as Steccherinum pulcherrimum. 

 Hydnum putidum — now given as Pliellodon putidus. 

 Hydnum ramosum — now given as Hericium laciniatum. 

 Hydnum reinforme — now given as Steccherinum reniforme. 

 Hydnum reniforme — now given as Steccherinum reinforme. 

 Hydnum rhois — now given as Steccherinum rhois. 

 Hydnum scabripes — now given as Sarcodon scabripes. 

 Hydnum schiedermayeri — now given as Hericium croceum. 

 Hydnum scrobiculatum — now given as HydneHum scrobiculatum. 

 Hydnum septentrionale— now given as Steccherinum septentrionale. 

 Hydnum spongiosipes — now given as HydneHum vehitinum. 

 Hydnum stratosum — now given as Leaia stratosa. 

 Hydnum strigosnm — now given as Steccherinum strigtosum. 

 Hydnum suaveolens — now given as HydneUum suavcolens. 

 Hydnum tinctorium — now given as Fxiiinodontium tinctorium. 

 Hydnum tomentosum — now given as Pliellodon tomentosus. 

 Hydnum vellereum — now given as Phellodon vellereus. 

 Hydnum velutinum — now given as Hydnellum velutinum. 

 Hydnum zonatum — now given as Hydnellum zonatum. 



The purpose and nature of the monograph, the general remarks, and 

 the distribution of the Hydnaceae will l)e given in Professor Banker's 

 own words, which are as follows : 



"The following paper is intended to include a revision of all the 

 pileate forms of the family of the Hydnaceae. which have been found on 

 the continent of North America and its adjacent islands north of the 

 Isthmus of Panama. A few rcsupinate forms have been included by 

 reason of their close relationship to pileate forms, but in general they 

 have been excluded. The reason for this arbitrary limitation of the scope 

 of the work is the impossibility of a(k(juately treating the resupinate 

 forms and referring them to their projicr sju-cies until such time as the 

 Berkeley types can be thoroughly examined by one familiar with our 

 American plants. 



"The Hydnaceae represent one of the smaller families of the Basi- 

 diomycetes, there being not more than live hundred known species in the 

 family, and of these not more than two hundred have been reported within 

 the geographical limits of this paper. With a few exceptions the species 

 are not common and generally appear to be quite local in distribution. The 

 task, therefore, of getting suitable material on which to base a revision oi 

 the family has proved more difficult than was at lirst anticipated. Nor 

 are the herbaria of collectors as helpful as one would have a rigiit to 

 expect. The published descriptions of sjjccies of this family are frequently 

 incomplete and inadequate to fully discriminate the species, so that it is 

 possible often to include several different species under the one descrip- 

 tion. Collectors are inclined to refer specimens according to some con- 

 spicuous feature, such as a scaly pileus or a zonate pileus, and then pay 

 little attention to other apparently minor characters. Owing to the local 

 character of the distribution of these plants, combined with the com- 

 parative rarity with which they are found, few discover that the plants 



