SECTION AMAURODERMUS. 



b. PORES SMALL. 



OCELLATUS (Fig. 415). Pileus thin but rigid. Surface 

 smooth, faintly zoned. Pores very minute, rigid with thick walls. The 

 colored hyphae have thick walls so that a cross section appears like 

 thickened cells. Stipe central or lateral, slender, mat, light brown. 

 Spores not found. Known only from Brazil collections (Spruce). 

 The pores are so minute that they are hardly visible, but it is all a 

 mistake that "the pore mouths are contracted, etc." 



MACER. I did not cut the single specimen that represents it (Spruce, 

 Brazil) but as to the pileus and pores it seems to me the same as the preceding. 

 The lateral stem, however, is blacker and I think it a different species. The 

 determinations, "macer, Berkeley," both at Berlin and Paris have no resemblance 

 to it. 



SCHOMBURGKII (Fig. 416). Pileus mesopodal or pleuropodal, 

 thin with zonate, smooth surface. Pores concolorous, minute. Stipe 

 dull, slender. Named from specimens from British Guiana in Hooker's 

 herbarium, but afterwards found by Spruce in Brazil. 



Fig 417 



Amaurodermus sericatus. 

 119 



