Does anyone out there know why Dryopteris felix-mas is called the "male fern"? Its rhizomes were used as a tapeworm remedy and one finds this common name in old treatises on herbal medicines. Lenore Durkee durkeel at ac.grin.edu Department of Biology 515-269-3035 Grinnell College FAX 515-269-4285 P.O. 805 Grinnell, Iowa 50112