One of a number of Coprinellus micaceous look-alikes differing microscopically and phylogenetically. Not quite C. flocculosus sensu USA No caulocystidia, Veil of cylindrical chains, not rubbing off easily, no pilocystidia, pileipellis with oleiferous hyphae, pleurocystidia giant separating cells, 4-spored, hymenium coprinoid, spores densely black, with central but sub-apical pore. Face-view length=11.7?14.5?m (?=13.3, ?=0.76), width=8.4?10.2?m (?=9.1, ?=0.45), Q=1.3?1.6?m (?=1.47, ?=0.09), n=20.