84 



Mycologia 



Murrill 88. Known only from the type locality. This species 

 has the appearance of Coprinus in the fresh state but the lamellae 

 do not deliquesce readily. The cystidia and mass of oozonium 

 also place it in Coprinus, although the dried specimens look very 

 much like Hypholoma. 



5. Coprinus mexicanus sp. nov. 



Pileus obovoid to conic, expanding and deliquescing with age, 

 having the appearance of a pufTball when young, greparious to 

 cespitose, about 1 cm. broad and high before expanding; surface 

 pale-incarnate when young, decorated with tufts of fibrils, be- 

 coming roseous and losing most of the fibrils with age; margin 

 concolorous, becoming revolute ; lamellae numerous, very narrow, 

 blackish-brown at maturity ; spores minute, ovoid, smooth, very 

 pale purplish-brown, almost hyaline under the microscope, 4-4.5 X 

 2.5—3.5 /x ; stipe short, equal, somewhat fibrillose, white, 2-3 cm. 

 long, 2 mm. thick; annulus membranous, persistent, rose-colored, 

 attached 'below the middle of the stipe. 



Type collected in abundance on the base of a dead, moss- 

 covered trunk in a virgin forest at Motzorongo, near Cordoba, 

 Mexico, 400 m. elevation, January 15, 19 10, IV. A. & Edna L. 

 Murrill 1080. Known only from the type locality. This beau- 

 tiful little species when first seen at a distance was thought to 

 be a tiny pufTball. Its rosy color and small size should readily 

 distinguish it. 



6. Coprinus jamaicensis sp. nov. 



Pileus nearly cylindric to expanded, finally upturned and mostly 

 deliquescing, gregarious to cespitose, 3 cm. high unexpanded, and 

 2 cm. broad at maturity; surface shaggy with pointed, fugacious 

 scales, murinous, the scales fuliginous ; margin striate after the 

 scales fall away, as in C. atramentarius ; lamellae rather crowded 

 at first, ventrieose, fuliginous, soon deliquescing; spores ovoid, 

 smooth, nearly opaque, usually 2-guttulate, umbrinous under the 

 microscope, 7-8 X 4 ^ stipe equal, smooth, white, rather tough, 

 hollow, 1 cm. long, 1.5 mm. thick; annulus wanting. 



Type collected on a decayed palm trunk at Castleton Gardens, 

 Jamaica, December 14, 1908, W . A. & Edna L. Murrill 115. 

 Known only from the type locality. 



