Scientific name: Bulgaria inquinans Fries
Derivation of name: Inquinans means "polluting" or
"staining" perhaps in reference to the dark color of this
Synonyms: Phaeobulgaria inquinans
Common name(s): Black jelly drops; Poor man's
Occurrence on wood substrate: Saprobic; solitary to
clustered on decaying hardwoods, especially oak;
summer through fall.
Dimensions: 1-4 cm wide, about as high; rounded to
shallow cup-shaped, becoming flat topped at maturity.
Sterile outer surface: Blackish-brown to brown and rough.
Fertile inner surface: Black, smooth, and shiny.
More information at RogersMushrooms.com:
Figure 1. Typical specimens of Bulgaria inquinans on wood.
Photo © William Roody.
Figure 2. Black jelly drops. Photo © Brian Shelton.