SECTION AMAURODERMUS. 



SERICATUS (Fig. 417). Pileus thin, seal-brown, depressed in 

 the center, coriaceous, with a smooth, minutely velvety, shiny, satiny 

 surface. Stipe mesopodal, long (15-20 cm.), slender (3-5 mm. thick) 

 with dark, dull velvety surface. Pores minute (1-1^/2 mm. deep) 

 clear seal-brown, with concolorous mouths. Hyphae deeply colored. 

 Setae none. Spores not found, probably white. A single specimen is 

 at Kew, collected by J. H. Holland at Old Calabar, Africa, and referred 

 by error to rugosus. 



HETEROMORPHUS. Pileus depressed in the center, brown, 

 sub-zonate. Pores with white mouths, at least when young. Stipe 

 mesopodal, with dull surface. The types both at Paris and at Kew 

 are young collections. Several specimens in the museums I think are 

 referred here in error. 



RENATUS. Pileus thin, reniform, with a lateral stipe, dark red- 

 dish brown. Pores minute, white then brown. Stipe slender (1^2-2 

 mm.) with dull surface. Known from Spruce's collection in Brazil. 

 Ellis also determined it from Nicaragua and I think correctly. It seems 

 to me very close to the next, but is larger and pleuropodal. 



Fig. 418 



Amaurodermus exilis. 



Fig. 419 



Amaurodermus marasmioides. 



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