552 



COMPARATIVE MORPHOLOGY OF FUNGI 



delicate, pure white, secondary mycelia, which become binucleate by 

 extensive clamp formation. In the basidium, after the first division of 



Fig. 370. — Phleogena faginea. 1. Mature fructification. 2. Section of young fructi- 

 fication forming the peridium. 3. Section of peridium with basidia below. 4. Loosely 

 intertwined hyphae with basidia. (1 X 10; 2 X 16; 4 X 500; after Brefeld, 1888.) 



the fusion nucleus, a wall is formed before the second division. Each of 

 the four cells of the basidium produces a single uninucleate spore. 



