seed fern

seed fern
A plant of the ancient order Cycadofilicales, which had fronds like a fern and naked seeds

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  • seed fern — seed′ fern n. pal any of various fossil plants of the order Lyginopteridales (or Cycadofilicales) that had fernlike leaves and reproduced by means of seeds Also called pteridosperm • Etymology: 1925–30 …   From formal English to slang

  • seed fern — n. any of an extinct class (Pteridospermae) of Paleozoic, fernlike cycads that bore naked seeds upon their leaves …   English World dictionary

  • seed fern — noun an extinct seed producing fernlike plant of the order Cycadofilicales (or group Pteridospermae) • Syn: ↑pteridosperm • Hypernyms: ↑gymnosperm * * * noun : a plant or fossil of the order Cycadofilicales : pteridosperm * * * any of various… …   Useful english dictionary

  • seed fern — any of various plants of the order Lyginopteridales (or Cycadofilicales), known only as fossils, having fernlike leaves and reproducing by means of seeds. Also called pteridosperm. [1925 30] * * * ▪ plant       loose confederation of seed plants… …   Universalium

  • seed fern — noun Date: 1927 any of an order (Pteridospermales) of extinct cycadophytes with foliage like that of ferns and with naked seeds …   New Collegiate Dictionary

  • seed fern — noun another term for pteridosperm …   English new terms dictionary

  • fern — fernless, adj. fernlike, adj. /ferrn/, n. any seedless, nonflowering vascular plant of the class Filicinae, of tropical to temperate regions, characterized by true roots produced from a rhizome, triangular fronds that uncoil upward and have a… …   Universalium

  • Fern — /ferrn/, n. a female given name. * * * Any of about 10,000–12,000 species (division Filicophyta) of nonflowering vascular plants that have true roots, stems, and complex leaves and reproduce by spores. Though ferns were once classified with the… …   Universalium

  • fern seed — noun The asexual, dustlike spores of a fern which resemble seeds Superstition held fern seed renders one invisible See Also: seedcake, seedcase, seed coat, seedeater, seeder, seed fern …   Wiktionary

  • seed stock — noun a) A stock of seed The estates present seed stock comprises seedlings, bulbs and various nuts b) Any supply for planting in general Sustainable hunting and fishing cares as much for its seed stock as for catch or haul See Also: seedcake …   Wiktionary

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