PLATE 60 



Fig. 1. A widened lamellar ridge in cross-section, showing the sterile area 

 between the edges of the hymenium. 75 diameters. 



Fig. 2. A sporophore developed from a single lobe of a mutilated inverted 

 specimen. For a further description see the text. 2 diameters. 



Fig. 3. A median longitudinal section through a regenerated sporophore. 

 See text for further explanation. 75 diameters. 



[496] 



