DESCRIPTION OF PLATES. 



Plate I. Fig. 1. — End of longleaf pine log with many sporophores of ien^ifes sepzaria. 

 The small white masses on the left are sporophores of another wood- 

 rotting fungus. Note the season cracks in the wood. Fig. 2. — Several 

 new sporophores of Lenzites sepiaria showing their hymenial surface. 

 II. Fig. 1. — New railroad tie with early stage of decay caused l)y Lenzites 

 sepiaria. The largest rotted area is located at a season crack in the upper 

 surface of the tie. Fig. 2. — New railroad tie with medium stage of decay 

 caused by Lenzites sepiaria. The rotted areas are located at season 

 cracks. 



III. Fig. 1. — Late stage of decay caused by Lenzites sepiaria in a longleaf pine 



tie which has been cut but a few months and never has been placed in 

 service. Fig. 2. — Plug used in inoculating green timber. Removed in 

 less than five months. A sporophore was formed on the outer end. 

 Fig. 3. — Loblolly pine timber with Lenzites sepiaria sporophores in the 

 season cracks. 



IV. Longleaf pine block upon which a pure culture of Lenzites sepiaria has 



grown for about six months. This type of rot is the one which accom- 

 panies the fruiting bodies of this fungus so universally. 



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