English definition of Fern

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Definition of fern

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Fern (n.) An order of cryptogamous plants, the Filices, which have their fructification on the back of the fronds or leaves. They are usually found in humid soil, sometimes grow epiphytically on trees, and in tropical climates often attain a gigantic size..

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Dorsiferous :: Dorsiferous () Bearing, or producing, on the back; -- applied to ferns which produce seeds on the back of the leaf, and to certain Batrachia, the ova of which become attached to the skin of the back of the parent, where they develop; dorsiparous..

Stoma :: Stoma (n.) The line of dehiscence of the sporangium of a fern. It is usually marked by two transversely elongated cells. See Illust. of Sporangium.

Acotyledonous :: Acotyledonous (a.) Having no seed lobes, as the dodder; also applied to plants which have no true seeds, as ferns, mosses, etc..

Moonwort :: Moonwort (n.) Any fern of the genus Botrychium, esp. B. Lunaria; -- so named from the crescent-shaped segments of its frond..

Fern :: Fern (adv.) Long ago.

Ferny :: Ferny (a.) Abounding in ferns.

Ramenta :: Ramenta (n. pl.) Thin brownish chaffy scales upon the leaves or young shoots of some plants, especially upon the petioles and leaves of ferns..

Involucre :: Involucre (n.) A continuous marginal covering of sporangia, in certain ferns, as in the common brake, or the cup-shaped processes of the filmy ferns..

Woodwardia :: Woodwardia (n.) A genus of ferns, one species of which (Woodwardia radicans) is a showy plant in California, the Azores, etc..

Hellbroth :: Hellbroth (n.) A composition for infernal purposes; a magical preparation.

Hare''s-foot Fern :: Hare's-foot fern () A species of fern (Davallia Canariensis) with a soft, gray, hairy rootstock; -- whence the name..

Exannulate :: Exannulate (a.) Having the sporangium destitute of a ring; -- said of certain genera of ferns.

Circinate :: Circinate (a.) Rolled together downward, the tip occupying the center; -- a term used in reference to foliation or leafing, as in ferns..

Fernticle :: Fernticle (n.) A freckle on the skin, resembling the seed of fern..

Polypodium :: Polypodium (n.) A genus of plants of the order Filices or ferns. The fructifications are in uncovered roundish points, called sori, scattered over the inferior surface of the frond or leaf. There are numerous species..

Neuropteris :: Neuropteris (n.) An extensive genus of fossil ferns, of which species have been found from the Devonian to the Triassic formation..

Stylagalmaic :: Stygian (a.) Of or pertaining to the river Styx; hence, hellish; infernal. See Styx..

Hardfern :: Hardfern (n.) A species of fern (Lomaria borealis), growing in Europe and Northwestern America..

Spore :: Sporangium (n.) A spore case in the cryptogamous plants, as in ferns, etc..

Stipe :: Stipe (n.) The stalk or petiole of a frond, as of a fern..