Akademik

true (leptosporangiate) ferns

↑Hymenophyllaceae, ↑family Hymenophyllaceae, ↑Osmundaceae, ↑family Osmundaceae, ↑Azollaceae, ↑family Azollaceae, ↑Gleicheniaceae, ↑family Gleicheniaceae, ↑Parkeriaceae, ↑family Parkeriaceae, ↑Polypodiaceae, ↑family Polypodiaceae, ↑Vittariaceae, ↑family Vittariaceae, ↑Aspleniaceae, ↑family Aspleniaceae, ↑Blechnaceae, ↑family Blechnaceae, ↑Dicksoniaceae, ↑family Dicksoniaceae, ↑Oleandraceae, ↑family Oleandraceae, ↑Pteridaceae, ↑family Pteridaceae

: an order of herbaceous, arborescent, or occasionally climbing plants (class Filicineae) that comprise the true ferns, that are characterized by exstipulate fronds, leptosporangiate sporangial development, and small thin-walled sporangia which are usually borne in sori on the undersides of the fronds, and that have a characteristic ring of thick-walled cells which assists in dehiscence of the spores — compare fern ally, pteridophyta

Filicales /-kāˈlēz/ or Filicineae /-sinˈi-ē/ plural noun

The ferns, leptosporangiate and eusporangiate, with or without water ferns

Main Entry: ↑Filices