Black curvilinear forms on dead wood.

Black curvilinear forms on dead wood.

Observation - Black curvilinear forms on dead wood. . Description: I tried hard to find an ID for this but I can't even tell whether this is fungus, lichen, alga or the result of bacteria or something else. Found several times in this wood. Would dearly love to know what it is. This collapsed coppice is probably Ash (som

I tried hard to find an ID for this but I can't even tell whether this is fungus, lichen, alga or the result of bacteria or something else. Found several times in this wood. Would dearly love to know what it is. This collapsed coppice is probably Ash (somewhat hard to tell under the snow, moss and general decay).