434 



BASIDIOMYCETES. 



deciduous trees.^ They are brown or grey in colour, tuber-like or 

 hoof-shaped, and continue to grow for several years ; the upper 



^ i a . '^'s ^ SPo m s 2 



l|-ll.":|« 



: ^ ^ s-gj o*s ssf 2 



■^( i^ 







. o .-bCji's S-g^-S-g^ 



1 V. Q'ubeuf (/'o*-.s//.-Ha<«>vr/.s.s. Zeifschrift, 1893) describes a plantation of Alnv^ 

 incaiia in Tyrol, which was being killed out by this fungus (Fig. '2(V2). It is 

 a common Britisli species. (Edit.) 



