exidia nigricans, saprotrophic fungus growing on an old rotten stump of a large deciduous tree

exidia nigricans auriculariaceae basidiomycota fungi saprotrophic fungus rotten stump deciduous tree black gelatinous basidiocarps fruitbodies woodrotting branches warlock 039 butter jelly mushroom dark rubbery shiny sporebearing surface attached wood spore ellipsoid septate allantoid spores glandulosa phaeotremella foliacea frondosa annulohypoxylon biscogniauxia camarops hypoxylon