filicales defined in 1951 yearfilicales - filicales;
filicales - Ferns. Order of Pteridophyta including great majority of existing pteridophytes and a few extinct forms. Perennial plants with creeping or erect rhizome, or with erect aerial stem several metres in height, e.g. tropical tree ferns. Leaves characteristically large and conspicuous. Sporophylls like ordinary vegetative leaves, bearing sporangia on under surface, often in groups (sori), e.g. shield fern, or much modified, superficially unlike leaves, e.g. royal fern. Homosporous, prothalli bearing both antheridia and archegonia. Includes also a small group of aquatic, heterosporous ferns.
near filicales in Knolik
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