SPORE-DISCHARGE FROM POLYPOREAE 119 



The fungus, so to speak, has solved the problem of spore-production 



FIG. 4:2.Polyporus radiatus, a polypore which produces many small imbricating 

 fruit-bodies rather than one large solitary fruit-body. Here the fruit-bcdies 

 are projecting from an Alder (Alnus) tree. Photographed by A. E. Peck in 

 Yorkshire. About J natural size. 



by spreading out its hymenium in shallow tubes attached to a 

 large number of small imbricating fruit-bodies rather than, as in 



