genus Matteuccia ge·nus·mat·teuccia uncommon noun 1. small genus sometimes included in genus Onoclea; in some classifications both genera are placed in Polypodiaceae SynonymsMatteucciagenus MatteucciaPteretisgenus Pteretis Related words Broader terms fern genus Parts Dryopteridaceae Part of ostrich fern WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.