 Stagnicola perplexa is similar in appearance and shares habitats and a geographical range comparable to Mythicomyces corneipes . S. perplexa generally has a more faded coloration , and produces brownish spore prints lacking purplish tones . The two species can be reliably distinguished by microscopic characteristics , as Stagnicola has smooth spores and cheilocystidia with thin walls . Owing to its similarly colored cap and habitat amongst mosses , Phaeocollybia attenuata might be confused with M. corneipes . Phaeocollybia attenuata can readily be differentiated in the field by the long wirelike pseudorhiza extending below the substrate , and microscopically by the much more heavily ornamented limoniform @-@ globose spores and absence of pleurocystidia . Other morphologically similar species include Hypholoma udum and H. elongatum , but unlike M. corneipes , both of these agarics have smooth spores , yellow chrysocystidia , and lack metuloids . The lookalike Galerina sideroides is found in Washington , Michigan , and Sweden , where it fruits in groups on rotten conifer logs . It has distinct microscopic characteristics , such as a wider range of basidial widths ( 20 – 40 µm ) , and a lack of pleurocystidia . 
