layer. Folds of the hymenium broad, obtuse, with numerous warts. 

 Quite distinct metuloids are found on spongiosa, which do not occur 

 on the American forms. Hence it might be called a "new genus." 

 Spongiosa seems to be an African and Eastern species, absent from 

 the American tropics. It is quite close to Cladoderris dendritica, 

 having the same tomentum layer on the pileus, and the main differ- 

 -ence is the broad, more obtuse and flatter hymenium folds. 



Fig. 526. 



Cladoderris spongiosa. 

 Type specimen in herbarium of Fries. 



There are relatively few specimens in the museums from Africa, 

 Australia, Mauritius and Philippines. Nor is the distinction between 

 it and Cladoderris elegans strongly marked, for the nature of the 

 folds is not an absolute character, and many specimens occur that 

 appear to be intermediate. 



7 



