QA TWENTY-FIFTH REPORT. ON THE STATE MUSEUM. 
Bark of prostrate spruce trunks. Sandlake. September. 
The larger spores and echinulate threads separate this from S. 
atra B. & C. 
CLADOSPORIUM EPIPHYLLUM JVees. 
Fallen leaves of Platanus occidentalis. Castleton. June. 
Orprum smmiLE: Berk. 
Decaying wood. Poughkeepsie. Gerard. 
Orptum mMontuioiweEs Lk. 
Living grass leaves. West Albany. June. 
ZyGopEsmus Fuscus Cd. 
Decaying wood and leaves. Greenbush. July. 
ZYGODESMUs oLIvAcEus B. & C. 
Decaying wood. Sandlake. September. 
This scarcely differs from the preceding species except in its 
olivaceous color. | 
AscopuorA Mvucrepo TZode. 
Stale bread. Albany. 
ONYGENA EQUINA Pers. 
Old hoofs. Buffalo. Clinton. 
Spy #RoTHECA CasTaGner Lev. 
Both sides of various leaves. Common. 
Spo #roruEca pruinosa C. & P. : 
Hypogenous; mycelium thin, effuse, persistent; conceptacles 
minute, black; appendages few, long, colorless; sporangium ovate, 
eight spored. 
Leaves of Rhus glabra. Greenbush. August. 
The long colorless appendages readily distinguish this species 
from the preceding. The whole lower surface of the leaf appears 
whitened as if pruinose. 
PopospHERA BIUNCINATA C. & P. 
Mycelium thin; conceptacles minute, black; appendages six to 
ten, very long, colorless, biuncinate, the tips of the divisions some- 
times again divided; sporangium globose, containing eight spores. 
Upper surface of leaves of the witch hazel, Hamamelis Virgin- 
dana. Poughkeepsie. Gerard. New Baltimore. //owe. Sandlake. 
September. 
