50 



H. MARSHALL WARD. 



to the other papers lately published on the Ustilaginece by Brefeld 1 

 and Max Cornu, 2 -which, moreover, contain little of importance for our 

 present purpose. 



In the foregoing part of this essay I have collected a mass of evi- 

 dence tending to support the view definitely stated by De Bary, to 

 the effect that, as we proceed along the main lines from the lower to 

 the higher fungi, the sexual process and sexual organs gradually 

 become less and less evident, and at length disappear altogether, and 

 the fructification arises by apogamy, 



If we try to follow the various groups of fungi phylogenetically, 

 there can be no doubt that they may be placed, on morphological 

 grounds, much as De Bary has grouped them ; and if, taking into 

 account what has been said above, we attempt to arrange the smaller 

 groups as branches of the larger ones, we shall, I think, arrive at a 

 scheme not very different from that annexed, 



Uredineee 



Claviceps 



9 Xylaria 



t 



Pleospora 



« Melanospora 



Lichens 



Peziza 



Pyronema 



%, Polystigma 





Erysiphe£e 



Zygomycetes 



Podospheera 



Peronosporeffi 



Algce 



1 ' Schimmelpilze,' iv. 

 8 'Ann. des Sc. Nat,' 



# 



UstilagineEe 



Saprolegnia? 



