Some fifteen or twenty years ago the specimens were taken out of 

 their original wrappers, new labels were written, and they were numbered 

 systematically by numbers corresponding to the numbers Schweinitz used 

 in his Synopsis in America Boreali. While this makes them very much 

 more convenient for reference, I think it is really unfortunate, for the 

 specimens have lost to an extent their value as absolute type specimens. 

 The work was done by some one who had no critical knowledge of the sub- 

 ject, and it is evident on the face that in a few instances transpositions 

 have been made in numbering the specimens. I have made a note of in- 

 stances where it seemed that this was probably done, but, of course, I have 

 no evidence on the subject excepting the evidence of Schweinitz' writings. 



Schweinitz, who is the only one who has written on American fungi, 

 who was familiar with the fungi from first studies in Europe, referred to 

 European species the greater part of the American species that he met. 

 His determinations of Agarics, of course, can never be checked up, and 

 one is impressed with the number of Polypores that Schweinitz misde- 

 termined. There must be taken into account, however, the condition of 

 the science of the time Schweinitz wrote. His first text-book was Per- 

 soon's Synopsis, which contained but brief descriptions of European species, 

 and it was to be expected that many determinations made under these 

 conditions would be erroneous. I doubt if any one working under the 

 conditions under which Schweinitz worked could have done any better. 



In the following list the numbers are as the plants are now mounted, 

 referring to numbers in Synopsis America Boreali. Pla'nts in italics were 

 claimed by Schweinitz as new species. 



AGARICS 



Only a few Agarics are found in the herbarium as follows: 

 100. Collybia siccus now Marasmius and the common plant that Peck 

 called Marasmius campanulatus. 



108. Collybia stipitarius. This is not stipitarius of Europe, but Col- 

 lybia zonata of Peck. 



147. Pleurotus petaloides. This is Panus angustatus, of Berkeley and 

 Morgan, Pleurotus petaloides, of Peck. It is a question whether it should 

 be classed as Panus or Pleurotus. 



148. Pleurotus lamellirugis. This is now Paxillus panuoides. 

 152. Pleurotus stypticus. Correct now as Panus. 



154. Pleurotus algidus. This is Pleurotus atrocaeruleus of Peck's work. 



160. Pleurotus striatulus. This is the little plant which I believe to be 

 correct. 



162. Pleurotus nigcr. I am not sure I know this. Quite similar to 

 above, but seems larger and thicker. 



229. Crepidotus depluens. I should not like to say that it is not 

 correct, but I think it is not. 



230. Crepidotus violaceo-fulvus. Berkeley passed this as being Pleuro- 

 tus pinsitus of Europe. I do not know it, but I think it is what Peck has 

 called Panus salicinus. 



255. Coprinarius disseminatus. Now Psathyrella, but no specimen on 

 the bark preserved. 



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