noun
chiefly small perennial rock ferns: bladder ferns; in some classifications placed in Polypodiaceae
• Syn: ↑genus Cystopteris
• Hypernyms: ↑fern genus
• Member Holonyms: ↑Dryopteridaceae, ↑family Dryopteridaceae, ↑Athyriaceae, ↑family Athyriaceae
• Member Meronyms: ↑bladder fern
* * *
\\siˈstäptərə̇s\ nounUsage: capitalized
: a genus of ferns (family Polypodiaceae) of the north temperate zone having a hooded or arched indusium partly under the roundish sori — see bladder fern, fragile fern
Useful english dictionary. 2012.