Progeny from a plant of the apomictic species Cyrtomium falcatum were examined by protein electrophoresis. These progeny were produced from spores originating in sporangia with differing spore numbers. Analysis of zymograms indicates that variant banding patterns were exhibited in 16.1% of the progeny sampled. These anomalous phenotypes suggest that some apomictically reproducing plants can produce genetically variable progeny.