SEXUALITY OF THE FUNGI. 293 



roecious forms" will be discovered among Ustilaginese ; 

 whether this is an inference inspired by facts not yet published 

 does not appear. 



Of the remainder of Woronin's magnificent paper nothing 

 need be said here; and space does not admit of our referring 

 more in detail to the other papers lately published on the 

 Ustilaginese by Brefeld ^ and Max Cornu/ which, moreover, 

 contain little of importance for our present purpose. 



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

 evidence 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 phylogeneti- 

 cally, there can be no doubt that they may be placed, on morpholo- 

 gical 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. 



' ' Sclunimelpiize,' iv. 

 2 ' Anil, des Sc. Nat.' 



VOL. XXIV. — NEW SER. 



