PLATE 25 



Fig. 27. Boletus luteus. A section sliowiiig the hairs on the surface of the 

 pileus. (No. 236). X 250 diam. 



Fig. 28. EostJcovites granulatus. A longitudinal section of the hymenial 

 layer showing the paraphyses, a basidium with spores, a cluster of glands, and 

 the sub-hymenial layers. X 550 diam. 



Fig. 29. Eostkovites granulatus. A longitudinal section of the stipe showing 

 the structure of the rind. (Dried material contributed by Dr. W. A. Murrill). 

 X 250 diam. 



Fig. 30. Boletus luteus. A longitudinal section of the stipe showing the 

 rind and the context. (No. 236). X 250 diam. 



Fig. 31. Eostkovites granulatus. A section of the surface of the pileus 

 showing the dark granular masses in the context and the long hairs. (From 

 dried material; in fresh material the hairs are embedded in a dense jelly. 

 (No. 37). X 250 diam. 



Fig. 32. Eostkovites granulatus. A section of the surface of the pileus 

 showing the lack of differentiation in the structure of the rind. (Dried ma 

 terial contributed by Dr. W. A. Murrill). X 250 diam. 



[274] 



