OK THE FUNGI OF THE ARCTIC EXPEDITION, 13 



Enumeration of the Fungi collected durina/fhe Arctic Expedition, 



1875-76. By the Eev. M. J. Berkeley, M.A., F.L.S. 



[E^ad March 7, 1878.] 



The collection consists of 26 species, of which I have been able 

 with tolerable certainty to determine all but two. At least I have 

 indicated the closest affinities in one or two cases which were 

 difficult from the condition of the specimens, if there is some doubt 

 as to the exact species to which they are referred. Of the 26 

 species 17 are widely distributed, and 7 hitherto undescribed, be- 

 sides the two which I have been unable to determine. Of the 

 new species, two at least are very interesting, Agaricus Feildeni 

 and TJrnula Hartii. The former belongs to a group very little 

 understood ; and I have therefore to regret that the specimens 

 were so roughly dried (which under the circumstance was un- 

 avoidable) that some of the characters are more or less obscure ; 

 the latter is a new form of the curious genus TJrmda, Fr., and so 

 like the figure in i Flora Danica,' referred by Fries as a variety to 

 Peziza ciborium, that I should have thought it the same had not 

 that plant been identified with Peziza Curreiana. The occurrence 

 of Chcetorniuni glabrum on the walls of the cabin of the ' Alert ' in 

 such abundance is very curious. In this country it is widely 

 diffused, not only on papered walls but on bare stone, basket- 

 work, &c. ; and it is remarkable that the sporidia are notably 

 smaller in the Arctic specimens. Ar/aricus Feildeni, which oc- 

 curred several times, is probably esculent, as is certainly the case 

 with Eussida integra. I ought perhaps to apologize for descri- 

 bing A. sphcerosporus and A. Bellotianus from single specimens ; 

 but the characters are such as to separate them from all allied 

 species which had been previously described. 



1. Agaricus (Omphalia) tjmbilicatus, Schceff. t. 207 ; Fr. 



Hym. Eur. p. 155. 



On peaty soil. Mount Prospect, Discovery Bay (H. C. Hart). 



Spores minute, slightly kidney-shaped. 



2. A. (Omphalia) umbelliferus, L. 



On peat. The yellow form. Pnoven, with Peltigera. Disco, 

 July 1875. Pnoven, July 1875. Discovery Bay (H. C. Hart). 

 TIperuavik, July 22, 1875 (Capt. H. W. Feilden). 



Pileus tomentose ; stem thickest below, tomentose, about 2 lines 

 high. The specimens are small, but mostly well developed. In 

 those from Discovery Bay the gills are so thickened as to be almost 



