Common Names: sensitive fern
The study analyzed nucleotide sequences of the chloroplast-encoded rbcL gene for multiple species of ferns and their relatives. The data was analyzed using maximum parsimony and maximum likelihood criteria to determine evolutionary relationships. The results supported reclassification of two fern species and their varieties, as well as a possible reclassification of related genera. The study provides new insight into the evolutionary history and classification of these ferns and their relatives.