De Thumen's Mycotheca universalis. — This valuable myco- 

 logical collection, which was begun in 1875, now includes 2000 

 .species ; the 20th century having been issued towards the close 

 of 1881. 



The work is very neatly gotten up, and including as it does 

 species from all parts of the world, many of which are rare and 

 valuable, is well worth the moderate price at which it is sold. 



An index to the first twelve centuries has been published, from 

 which it may be noted that among these 1200 species there are 

 of the 



These different orders are apparently represented in about the 

 same relative proportion in the remaining centuries of the collec- 



The preponderance of the Uridinei is noticable, comprising as 

 it does one-fourfh of the whole number of species. Of these 237 

 were collected in Europe, 33 in America, 21 in Africa, 7 in Asia, 

 and 2 in Australia. 



The bulk of the species, as would be expected, are European, 

 but as at least three collections at different points in the Middle 

 and Southern States have contributed more or less, the propor- 

 tion of American species is comparatively very small and natur- 

 ally leads to the enquiry whether the Uredinei are really represented 

 by a less number of species here than in Europe. 



That this may be the case is further indicated by the fact that 

 in the "North Am. Fungi " of which the material for nine centu- 

 ries is now collected, there are. after throwing out from cent. Ill 

 25 species not belonging to this order and adding 50 species since 

 collected, only 125 species of Uredinei or about j part of the 

 whole number thus far collected. 



It is to be borne in mind, however, that in the Report of the N. 

 Y. State Museum of Nat. History, nearly 200 species of Uredinei 

 have already been enumerated, and it is altogether probable that 

 on a thorough exploration of our territory, the list of American 

 species of this order will be largelv augmented.— J. B. Ellis, New- 

 field, N. X 



Notes on N. American Grasses, based on Mr. Bentham's 



RECENT PAPER ON GRAMINEyE.— 



a new genus by 1 



.sly referral to Li 



