MYCOLOGICAL NOTES. 



BY C. G. LLOYD. 

 CINCINNATI, O. JULY, 1907. 



CONCERNING THE POLYPOROIDS. 



We have just begun a critical study of the polyporoids, but it 

 will probably be several years before we shall do much publishing 

 on the subject. The subject is so extensive, some twenty-eight hundred 

 supposed species, that it will take considerable time before we can get 

 any definite ideas as to the value of them. In the meantime we shall 

 content ourselves with a few notes from time to time on the points 

 that come to our attention in our investigations. 



FOMES ROBURNEUS. This is a very rare species I believe 

 in Europe, and Bresadola states ( Mycological Notes, p. 22) : "There 

 exists no original specimen of this in Fries' herbarium. According 

 to his diagnosis, and certainly according to specimens of several 

 authors, it is a variety of fomentarius. However, Fries' illustration 

 (Ic. T. 184, f. 2) is an exact picture of the stratified form of roseus." 



I was glad to find at Kew type specimens of Fomes roburneus 

 from Fries. It belongs to the section Ganoderma and has no resem- 

 blance to fomentarius. I think Fries has given a good description of 

 it in his Hymenomycetes, and his specimen accords well with the 

 description. Also it is fairly well represented in his "Icones." I have 

 received this rare plant from Rev. A. Breitung, Charlottenlund, Den- 

 mark, which agrees exactly with the Friesian type at Kew. When I 

 was in Sweden, Mr. Romell called my attention to a Fomes growing 

 on an oak tree at Drottningholm. If I remember correctly, he 

 thought this was Fomes roburneus of Fries, though he told me the 

 Friesian type specimen (he had seen the specimen at Kew) did not 

 agree. I think the specimen at Kew is correctly named, and the 

 Fomes we found at Drottningholm is something different, as yet I 

 do not know what. 



POLYPORUS BERKELEY!. When Morgan wrote his account 

 of the polyporoids he had Polyporus Berkeleyi correct, but what he 

 should have called Polyporus frondosus he called Polyporus Anax. 1 It 



1 If the labels were removed from the "type specimens" of the " foreign polyporoids " 

 in the museums of Europe, I do not believe that any man could replace ten per cent of them 

 correctly on the strength of the " descriptions " that have been printed of them. To express 

 opinions of the identity of these plants based on these descriptions is only making trouble. 



UNIVERSITY^ CALIFORNIA 



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