TYPE STUDIES IN THE HYDNACEAE— IV.^ 
THE GENUS PHELLODON 
Howarb J. Banker 
Phellodon NIGER (Fries) P. Karst. Rev. Myc. 3^: 19. 1881 
Hydniim nigrum Fries, Obs. Myc. i: 134. 1815. 
No specimen was found at Upsala that could be regarded with 
certainty as the type of the species. Specimens under this name 
in the herbarium presented considerable diversity of characters. 
A specimen from Karsten collected in 1866 may be considered 
from its date as having its determination at least approved by 
Fries. This specimen appears identical in every respect with 
the American forms which we have referred to the Friesian spe- 
cies^ and we, therefore, believe that we have rightly interpreted 
the species. 
Phellodon amicus (Quel.) 
Hydnnrn amicum Quel. Grev. 8: 115. 1880. 
Hydnum vellereum Peck, Kept. N. Y. State Mus. Nat. Hist. 50: 
no. 1897. 
The type specimen of H. amicum Quel, could not be located, 
but at Paris authentic specimens from Quelet were found which 
appeared to be identical in all characters with the American H. 
vellereum Pk. 
Phellodon pullus (Schaeff.) 
Hydmim pullum Schaeff. Fung. Bavar. 4: 98. pi. 2"/ 2. 1774- 
Hydnum zonatum Gmelin, L. Syst. Nat. 2 : 1438. 1796- 
Hydnum melaleucum Fries, Obs. Myc. i: 141. 1815. 
Hydnum leptopus Pers. Myc. Eur. 2: 170. 1825. 
Hydnum graveolens Delast. Fries, Epicrisis 509- 1836-38. 
There is, of course, no type specimen of Hydnum pullum 
Schaeff., and our understanding of the species is based chiefly on 
' Investigation prosecuted with the aid of a grant from the Esther Herr- 
man Research Fund of the New York Academy of Science. 
^ Mem. Torrey Club 12: 166. 
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