Polystichum setiferum unrolling young frondFerns at Muir Woods, CaliforniaFerns at the Royal Melbourne Botanical Gardens
Discover great deals on the many hard to find and one of a kind items available only on eBay!

Ferns

A fern is any one of a group of about 20,000 species of plants classified in the phylum or division Pteridophyta, also known as Filicophyta. more...

HomeHome
Bird & Wildlife AccessoriesBird & Wildlife Accessories
Garden DécorGarden Décor
Garden Structures & FencingGarden Structures & Fencing
Gardening & PlantsGardening & Plants
Children's Gardening ItemsChildren's Gardening Items
Fertilizer & Soil AmendmentsFertilizer & Soil Amendments
Garden Tools & EquipmentGarden Tools & Equipment
Hydroponics & Seed StartingHydroponics & Seed Starting
OtherOther
Pest & Weed ControlPest & Weed Control
Planters, Pots & Window...Planters, Pots & Window...
Plants, Seeds & BulbsPlants, Seeds & Bulbs
Aquatic PlantsAquatic Plants
PlantsPlants
Pond PlantPond Plant
SeedlingsSeedlings
SeedsSeeds
Water LilyWater Lily
BonsaiBonsai
Bonsai TreeBonsai Tree
Bonsai TreeBonsai Tree
Bonsai TreeBonsai Tree
Bonsai TreeBonsai Tree
Japanese BonsaiJapanese Bonsai
PlantsPlants
SeedlingsSeedlings
SeedsSeeds
BromeliadsBromeliads
Cactus & SucculentsCactus & Succulents
Cactus PlantCactus Plant
PlantsPlants
SeedlingsSeedlings
SeedsSeeds
FernsFerns
Flower Bulbs, Roots & CormsFlower Bulbs, Roots & Corms
Bearded IrisBearded Iris
Tall BeardedTall Bearded
Tall Bearded IrisTall Bearded Iris
Tall IrisTall Iris
Flower Plants & SeedlingsFlower Plants & Seedlings
AnnualsAnnuals
BiennialsBiennials
PerennialsPerennials
Flower SeedsFlower Seeds
25 Seeds25 Seeds
AnnualsAnnuals
BiennialsBiennials
Bulk SeedsBulk Seeds
Flower Seeds GiftFlower Seeds Gift
PerennialsPerennials
Groundcovers & VinesGroundcovers & Vines
PlantsPlants
SeedlingsSeedlings
SeedsSeeds
Vine SeedsVine Seeds
HerbsHerbs
Herb SeedsHerb Seeds
PlantsPlants
SeedlingsSeedlings
SeedsSeeds
HouseplantsHouseplants
African VioletAfrican Violet
OrchidsOrchids
Cattleya OrchidCattleya Orchid
Orchid PlantOrchid Plant
Ornamental GrassesOrnamental Grasses
Ornamental GrassOrnamental Grass
OtherOther
RosesRoses
Shrub Flower PlantShrub Flower Plant
ShrubsShrubs
PlantsPlants
SeedlingsSeedlings
SeedsSeeds
TreesTrees
EvergreenEvergreen
Fruit/FloweringFruit/Flowering
NutNut
OtherOther
ShadeShade
TropicalsTropicals
Orchid PlantOrchid Plant
Orchid PlantOrchid Plant
Orchid PlantOrchid Plant
Orchid PlantOrchid Plant
Orchid PlantOrchid Plant
Orchid PlantOrchid Plant
PlantsPlants
SeedlingsSeedlings
SeedsSeeds
Vegetables & FruitsVegetables & Fruits
4 Tomato Plants4 Tomato Plants
PlantsPlants
Seed SeedsSeed Seeds
SeedlingsSeedlings
Seeds & BulbsSeeds & Bulbs
Tomato SeedsTomato Seeds
Publications & SoftwarePublications & Software
Watering EquipmentWatering Equipment

The group is also referred to as Polypodiophyta, or Polypodiopsida when treated as a subdivision of tracheophyta (vascular plants). The study of ferns and other pteridophytes is called pteridology, and one who studies ferns and other pteridophytes is called a pteridologist. The term "pteridophyte" has traditionally been used to describe all seedless vascular plants, making it synonymous with "ferns and fern allies". This can be confusing since members of the fern phylum Pteridophyta are also sometimes referred to as pteridophytes.

Life cycle

Ferns are vascular plants differing from the more primitive lycophytes by having true leaves (megaphylls), and they differ from seed plants (gymnosperms and angiosperms) in their mode of reproduction - lacking flowers and seeds. Like all other vascular plants, they have a life cycle referred to as alternation of generations, characterized by a diploid sporophytic and a haploid gametophytic phase. Unlike the gymnosperms and angiosperms, the ferns' gametophyte is a free-living organism. The life cycle of a typical fern is as follows:

  1. A sporophyte (diploid) phase produces haploid spores by meiosis;
  2. A spore grows by cell division into a gametophyte, which typically consists of a photosynthetic prothallus
  3. The gametophyte produces gametes (often both sperm and eggs on the same prothallus) by mitosis
  4. A mobile, flagellate sperm fertilizes an egg that remains attached to the prothallus
  5. The fertilized egg is now a diploid zygote and grows by mitosis into a sporophyte (the typical "fern" plant).

Fern ecology

The stereotypic image of ferns growing in moist shady woodland nooks is far from being a complete picture of the habitats where ferns can be found growing. Fern species live in a wide variety of habitats, from remote mountain elevations, to dry desert rock faces, to bodies of water or in open fields. Ferns in general may be thought of as largely being specialists in marginal habitats, often succeeding in places where various environmental factors limit the success of flowering plants. Some ferns are among the world's most serious weed species, including the bracken fern growing in the British highlands, or the mosquito fern (Azolla) growing in tropical lakes, both species form large aggressively spreading colonies. There are four particular types of habitats that ferns are found in: moist, shady forests; crevices in rock faces, especially when sheltered from the full sun; acid wetlands including bogs and swamps; and tropical trees, where many species are epiphytes.

Read more at Wikipedia.org


[List your site here Free!]

Click to see more Ferns items at www.ebay.com
Prices current as of last update, 11/28/21 8:14am.

Home Contact Resources Exchange Links eBay