Dictionary » F » Fern



(Science: botany) 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.

The plants are asexual, and bear clustered sporangia, containing minute spores, which germinate and form prothalli, on which are borne the true organs of reproduction. The brake or bracken, the maidenhair, and the polypody are all well known ferns. Christmas fern. See christmas.

(Science: botany) Climbing fern The European goatsucker. The short-eared owl. Fern shaw, a fern thicket.

Origin: as. Fearn; akin to D. Varen, g. Farn, farnkraut; cf. Skr. Parna wing, feather, leaf, sort of plant, or lith. Papartis fern.

(Science: botany) A fern is a diploid sporophyte that produces haploid spores on the underside of their fronds in tiny containers called sporangia.

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Re: Pterydophyta

The Pteridophyta Divsion contains ferns. Ferns are plants with leaves, roots, and stems; but they do not have flowers like most plants. Ferns have special stems, called rhizomes, which grow sideways at the surface or underground. Many leaves ...

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by Anonymous
Sun Aug 04, 2013 12:52 pm
Forum: Botany Discussion
Topic: Pterydophyta
Replies: 30
Views: 26668

Help with indentifying object - can't narrow to even kingdom

... (spores?). If I place the 'pod' in water, it dramatically swells. It acts like desiccant. I've goggled bacterial colonies, slime mold, cinnamon fern spores, larvae, amphibian eggs and nothing matches. The closest thing I have found was cyanobacteria - nostoc. They also might be ootheca? I apologize ...

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by Sadial
Sun Jun 30, 2013 4:50 pm
Forum: General Discussion
Topic: Help with indentifying object - can't narrow to even kingdom
Replies: 2
Views: 6292

bryophytes >advanced than green algae; >primitive than ferns

bryophyte has thallus but fern has true root,leaves and stem.

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by biolovers
Sat Dec 15, 2012 12:22 pm
Forum: Botany Discussion
Topic: bryophytes >advanced than green algae; >primitive than ferns
Replies: 2
Views: 4276

Plant physiology question

I had a question regarding this scenario: In a fern’s life cycle,hybrid “1” the sperm in the antheridium was found to have 8 chromosomes and the dominate gene “A” on one of the chromosomes which produced large sporophyte fronds. In a hybrid “2” ...

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by inglej
Tue Apr 03, 2012 5:41 am
Forum: General Discussion
Topic: Plant physiology question
Replies: 0
Views: 2090

Ferns and their life cycle

The life cycle of a fern is beautiful and complex, but with a little study, you can understand it. Start with number 1 below, the spore. This is like the seed of a flowering plant, in that it is the way the fern reproduces and spreads. ...

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by jaycee
Mon Aug 01, 2011 1:54 pm
Forum: Botany Discussion
Topic: Ferns and their life cycle
Replies: 7
Views: 9378
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