SECTION LIGNOSUS. 



SPORES WHITE 



ii. CONTEXT BROWN OR GILVUS. 

 (PROBABLY.) 



a. STIPE NOT BLACK. 



BRUNNEO-PICTUS Pileus suborbicular or reniform with a 

 smooth, brown zoned surface. Context brown, hard, with hyphae 

 deep yellow tinder the glass. Pores minute with pale mouths but brown 

 context. Stipe lateral, hard, with dull brown surface. Spores not 

 found, but I think without question are white. This is a rigid, well- 

 marked species, known from several collections of Spruce, all from 

 Brazil. When young it is thin, but becomes thicker with age. The 

 thin, young specimens contract strongly in drying and were called 

 Polyporus semiclausus by Berkeley. 



Fig. 424 



Lignosus Zambesianus. 

 (Top of Pileus) 



127 



