IN AMERICA 163 



that time he has published an enormous number of descriptions 

 of new fungi, either alone or associated with Cooke, Martin, Ever- 

 hart, Kellerman, Holway, Harkness, Dearness, or Bartholomew. 

 His earlier collections were sent to M. C. Cooke in England, and 

 as a result of careless determinations, numerous errors have crept 

 into our conceptions of many species which will need correction 

 by future monographers who come to study Ellis' enormous col- 

 lection.* This contains by far the largest number of types of any 

 collection of American fungi in existence. 



The work of Mr. Ellis, while extending over the entire range of 

 the fungi, has been most extensive among the Sphaeriales and the 

 fimgi inipe7-fecti. In the former group he has published the only 

 manual that has yet appeared in America attempting to cover 

 descriptions of species of any considerable group, f 



In addition to this Mr. Ellis has distributed sets of fungi exsic- 

 cati under the title of North American Fungi, of which thirty-six 

 centuries have appeared (3600 specimens). As this was published 

 in an edition of some fifty to sixty sets, some idea can be formed 

 of the enormous labor connected with its issue. A second edition 

 under the title of Fungi Columbiani has also been issued to the 

 number of fourteen centuries. 



The work of other botanists who have given attention to my- 

 cology, like Bessey, Trelease, Morgan, Farlow, Atkinson, Burrill, 



* Through the liberality of some of the managers of the New York Bo- 

 tanical Garden, the entire Ellis collection has been secured for this institu- 

 tion, where it is available for students properly prepared for work. In ad- 

 dition to the types, the collection contains extensive series of specimens 

 sent by collectors and correspondents throughout the country, with dupli- 

 cates of many of the species described by other mycologists, and extensive 

 series sent in exchange by foreign botanists. Added to this is one of the 

 most complete series of foreign exsiccati in this country. Housed as it is 

 in connection with a very complete botanical library and the presence of 

 other extensive collections, it forms the most accessible center of research 

 work in mycology that the country affords. The collections belonging to 

 Columbia University and to the writer are also deposited with those of 

 the New York Botanical Garden. 



t Elhs & Everhart. The North American Pyrenomycetes, pp. 793. 

 PL 1-41. 1892. This includes the orders Perisporiales, Hypocreales, 

 Dothideales, Sphaeriales, Aspergillales and Hysteriales as here treated. 



