120 MINOR PRODUCTS OF PHILIPPINE FORESTS 



on being handled, and on becoming mature tends more toward 

 drying up than dehquescing. The lamellae are pale-gray at 

 first, but later change through grayish-brown to dark brownish- 

 black. The darkening begins first at the margin of the pileus 

 and slowly advances toward the center. The edges of the gills 

 usually remain conspicuously white even at maturity. They 

 are slightly adherent to the stipe at first, and then become free 

 after the pileus has become expanded. It is 3 millimeters 

 broad at the broadest part, and somewhat obtuse at either end. 

 The stipe is cylindrical and of an equal diameter throughout, 

 being 2.5 to 3.5 centimeters long, and 3 to 4 millimeters 

 thick. It is shining white, h^low, fibrillose, with an unthick- 

 ened base. The spores are ovoid to pyriform, very dark brown 

 at maturity, smooth, 3.5 to 5.5 by 7.5 to 11.5 microns, and 

 are vacuolate usually with a single vacuole. The basidia are 

 clavate, 9 by 23 microns, and the sterigmata are 4 microns 

 long. The fungus grows on burned over ground. 



COPRINUS ORNATUS Copel. 



Coprinus ornatus is characterized by having a pileus which 

 is campanulate to broadly conical, obtuse, 12 millimeters wide 

 and sulcate. The disk is tawny, ornately beset with dark 

 brown granules. The periphery is smooth or pulverulent, 

 changing from white or tawny to black. The gills are 7 milli- 

 meters long, 1.2 millimeters deep, and have no cystidia. The 

 spores are black and 10 by 7 microns. The stipe is straight, 

 2.5 centimeters or less high, and 1 millimeter thick. It is equal 

 or slightly contracted upward, smooth, white or hyaline, with a 

 ferruginous base, and is scarcely hollow. It is odorless and 

 has a fair flavor. The fungus grows on rotted wood of various 

 kinds. 



COPRINUS PLICATILIS (Curt.) Fr. 



Coprinus plicatilis has a pileus that is very thin, oval, cylin- 

 drical at first, then expanded, and 1 to 2.5 centimeters broad. 

 The cap has a tendency towards splitting and is sulcato-plicate, 

 somewhat smooth, with a broad disc which finally is depressed. 

 The stem is equal, smooth, white, and 2 to 8 centimeters long. 

 The gills are adnate to a distinct collar, and are distant, and 

 grayish black. The spores are 12 to 14 by 8 to 10 microns. 

 This species develops in pastures and on horse dung. 



COPRINUS PSEUDO-PLICATUS Copel. 



Coprinus ps6udo-plicdtus has a pileus which is early flattened 

 out, about 3 centimeters wide, being thin, at first scaly, and 

 becoming black because of its thinness. It is deeply split down- 



