Fungi > Basidiomycota > Agaricomycetes > Agaricales > Physalacriaceae > Rhizomarasmius > Rhizomarasmius undatus Rhizomarasmius undatusSynonyms: Agaricus undatus (heterotypic); Agaricus vertirugis; Collybia vertirugis; Marasmius laxipes var. undatus; Marasmius undatus
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