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 — This article is about the group of pteridophyte plants. For other uses, see Fern (disambiguation). Ferns (Pteridophyta) Temporal range: Mid Devonian[1] Recent … Wikipedia
eusporangiate — /ˌjuspɔˈrændʒiət/ (say .yoohspaw ranjeeuht) adjective (of a fern) having sporangia derived from a group of cells …
Leptosporangiate fern — Leptosporangiate ferns are vascular spore plants, whose sporangia arose from a single epidermal cell and not from a group of cells as in eusporangiate ferns. The sporangia are typically covered with a scale (from Greek: lepis , lepidos ) called… … Wikipedia
Marattiaceae — Marattiopsida Mule s foot fern (Angiopteris evecta) Scientific classification Kingdom … Wikipedia
Marattiopsida — Taxobox name = Marattiopsida image width = 240px image caption = Mule s foot fern ( Angiopteris evecta ) regnum = Plantae divisio = Pteridophyta classis = Marattiopsida classis authority = Doweld ordo = Marattiales ordo authority = Link familia … Wikipedia
Danaea — Scientific classification Kingdom: Plantae Division: Pteridophyta Class: Marattiopsida … Wikipedia
Osmundastrum cinnamomeum — Temporal range: Campanian to Recent … Wikipedia
Dehiscence (botany) — Dehiscence of the follicular fruit of milkweed (Asclepias syriaca) revealing seeds within. Dehiscence is the opening, at maturity, in a pre defined way, of a plant structure, such as a fruit, anther, or sporangium, to release its contents.… … Wikipedia
