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Title
DRYOPTERIS CARPATICA SPEC. NOV. -- A TETRAPLOID SPECIES OF THE DRYOPTERIS AFFINIS AGGREGATE (DRYOPTERIDACEAE, POLYPODIOPSIDA) FROM THE SOUTHERN CARPATHIANS.
A new tetraploid species of the Dryopteris affinis aggregate is described from the Romanian Carpathians. Results of flow cytometric, cytological and molecular genetic investigations are discussed.