74 Twenty- SIXTH Report on the State Museum. 



Spumaria alba do. 



Incrusting sticks and twigS near the ground. Croghan. Sep- 

 tember. 



DiDEKMA CRUSTACETJM PecTc. 



Effused or circumambient, crowded, sessile, subglobose, smooth, 

 white, outer peridium crustaceous, like the shell of some small Qgg, 

 the inner delicate, appearing cinereous to the naked eye, iridescent 

 under the microscope ; columella none; spores globose, black, .0005 

 in. in diameter. 



Fallen sticks and leaves under arbor-vitaB. Memphis. August. 



DiDERMA Mari^-Wilsoni Clintou. 



Scattered or crowded, sessile, subglobose, smooth, white or pink- 

 ish-white, outer peridium crustaceous, like the shell of some small 

 Bgg, within at the base brownish-pink, inner peridium delicate; 

 columella subglobose, rugulose, slightly colored; spores globose, 

 blackish-brown ; .0004 in. in diameter. 



Fallen leaves, sticks, moss, etc. Buffalo. Clinton. Memphis, 

 Center and Sandlake. August and October. 



DiDERMA FARINACEUM Psck. 



Effused or circumambient, crowded, sessile, subglobose, plum- 

 beous when moist, becoming white rugulose and farinaceous when 

 dry ; spores globose, brown, black in the mass, .0004 in. in diameter. 



Creeping over mosses and investing fern stems in low woods. 

 Croghan. September. 



The moisture from the fresh plant stains white paper lead color. 



DiDYMIUM CONNATUM PecTc. 



Peridium depressed or subglobose, cinereous, furfuraceous, stipi- 

 tate; stems mostly connate at the base, tapering upward, longitu- 

 dinally wrinkled, whitish or cream color ; spores subglobose, black, 

 .0004 in. in diameter. 



Decaying fungi. Portville. September. 



The subfasciculate mode of growth is characteristic of this 

 species. 



DiDYMIUM FURFURACETJM Ft. 



Rotten wood. Worcester. July. 



After the breaking up of the peridium, minute portions of it are 

 seen adhering to the flocci. The spores are globose, smooth, 

 .00033 in. in diameter. 



