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See all on WikipediaFern - Wikipedia
Ferns have complex leaves called megaphylls that are more complex than the microphylls of clubmosses. Most ferns are leptosporangiate ferns. They produce coiled fiddleheads that uncoil and expand into fronds. The group includes about 10,560 known extant species. See more
Carl Linnaeus (1753) originally recognized 15 genera of ferns and fern allies, classifying them in class Cryptogamia in two groups, Filices (e.g. Polypodium) and Musci (mosses). By 1806 this had increased to 38 genera, and has progressively … See more
Sporophyte
Extant ferns are herbaceous perennials and most lack woody growth. When woody growth is present, it is found in the stem. Their foliage may be deciduous or evergreen, and some are semi-evergreen depending on the … See moreThe lifecycle of a fern involves two stages, as in club mosses and horsetails. In stage one, the spores are produced by sporophytes See more
Ferns are widespread in their distribution, with the greatest richness in the tropics and least in arctic areas. The greatest diversity occurs in … See more
Wikipedia text under CC-BY-SA license Fern Structure - US Forest Service
- Leaves. The leaves of ferns are often called fronds. Fronds are usually composed of a leafy …
- Fiddleheads. As new fronds emerge, generally in the spring, they unroll, these unrolling …
- Leaf Divisions. Depending on the species, fern leaves display a wide array of divisions. …
- Dimorphic Fronds. Some ferns have two kinds of fronds: fertile fronds (leaves with …
- Fern Sori. Sori (singular: sorus) are groups of sporangia (singular: sporangium), which …
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Fern | Description, Features, Evolution, & Taxonomy
Fern, class of several thousand species of nonflowering vascular plants that reproduce by spores. Ferns have true roots, stems, and complex leaves and constitute an ancient division of plants. Learn about their physical …
35 Types of Fern to Freshen Up Your Home or Garden - The Spruce
- Ostrich Fern (Matteuccia Struthiopteris) Deciduous ostrich ferns (Matteuccia struthiopteris) …
- Macho Fern (Nephrolepis Biserrata) If you're looking for a delicate fern, don't opt for the …
- Lemon Butter Fern (Nephrolepis Cordifolia 'Duffii') A dwarf version of the popular Boston …
- Western Sword Fern (Polystichum Munitum) The delicate but distinguished western sword …
- Autumn Fern Dryopteris Erythrosora) Some ferns can get a little rangy when given a …
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18 Different Types of Ferns (with Pictures) - Plantglossary
- Maidenhair Fern. Botanical name: Adiantum aleuticum. Common names: Maidenhair Fern, …
- Giant Leather Fern. Botanical name: Acrostichum danaeifolium. Common names: Giant …
- Bird’s Nest Fern. Botanical name: Asplenium nidus. Common names: Bird’s Nest Fern, Nest …
- Hart’s Tongue Fern. Botanical name: Asplenium Scolopendrium. Common names: Hart’s …
- Lady Fern. Botanical name: Athyrium filix-femina. Common names: Lady Fern, Common …
Missouri Ferns | Missouri Department of Conservation
Mar 2, 2003 · It is easy to identify most Missouri ferns by their unusual leaves or fronds-slender stalks (stipes), together with their much divided, lacy and delicate leaf blades. There is …
Fern - Leaf Stalk, Sporangia, Fronds | Britannica
Learn about the form and function of fern leaves, also known as pteridophylls, and how they differ from other plant leaves. Find out how fern leaves are attached to the stem, how they unroll from the bud, and how they have various vein …
The evolution, morphology, and development of fern …
Here we discuss the theories of leaf evolution in ferns, morphology, and diversity of fern leaves, and experimental results of fern leaf development. We summarize what is known about the molecular genetics of fern leaf development and what …
Fern - Spore, Rhizome, Frond | Britannica
The leaf (also known as frond) of ferns is the part of the plant most readily visible to observation. The leaf plan in practically all ferns is pinnate—that is, featherlike with a central axis
Walking Fern - Missouri Department of Conservation
Walking fern is a perennial nonflowering vascular plant with distinctive, long-triangular leaves with a pair of lobes at the base of the blade. The leaves are simple, narrowly triangular, with netted venation. The leaves take root at the …
Osmunda regalis - Plant Finder - Missouri Botanical Garden
Osmunda regalis, commonly called royal fern, is a tall, deciduous, Missouri native fern which usually occurs on moist bluffs and ledges and along streams (sometimes growing in the …
Fern structure - Science Learning Hub
Sep 24, 2010 · Learn about the different parts of a fern plant, such as the rhizome, the frond, the lamina and the pinnae. Explore the diversity of form and structure in New Zealand ferns with …
About Ferns - American Fern Society
Learn about the biology, evolution, and diversity of ferns, one of the oldest groups of plants on Earth. Find out how ferns are different from seed plants, how they reproduce by spores, and …
Polystichum acrostichoides - Plant Finder - Missouri Botanical …
Polystichum acrostichoides, commonly called Christmas fern, is a Missouri native fern which occurs in both dry and moist wooded slopes, moist banks and ravines. Typically grows in a …
Fern - Shape, Structure, Reproduction | Britannica
Fern - Shape, Structure, Reproduction: The basic spore shape is tetrahedral. Most ferns are homosporous, while a few have dimorphic spores. Gametophytes form when the spore wall …
Ferns: Simple Key: Go Botany
Learn how to distinguish ferns, moonworts, clubmosses, quillworts, horsetails, and scouring-rushes based on their leaves, spores, and stems. See videos and examples of each subgroup …
What Are Ferns? - US Forest Service
Learn about ferns, plants that do not have flowers but reproduce by spores. Find out how ferns are related to horsetails, club-mosses and quillworts, and see photos of different fern species.
7.3: Ferns - Biology LibreTexts
Jan 30, 2024 · Fern leaves (megaphylls) are commonly referred to as fronds, which grow from an erect creeping rhizome (stem). They start as fiddleheads that uncurl. Fern sporophytes range …
Ferns’ ability to evolve ‘backward’ offers insights into the …
1 day ago · Imagine taking a fertile fern leaf, shrinking it down and wrapping it up tightly into a tiny pellet. That’s basically what an unfertilized seed is – a highly modified dimorphic fern leaf, in a ...
Fern 101: How to Care for Ferns - Bloomscape
Learn how to care for Fern plants. With guides for watering, lighting, humidity, and more, we have the care info you need to grow healthy indoor plants.
Fern - Spore Dispersal, Photosynthesis, Moisture | Britannica
The fern spore—a single living cell, usually protected by a thick wall—is the main source of population dispersal, being readily carried by wind. Ferns display a wide diversity of spore …
Ferns’ ability to evolve ‘backward’ offers insights into ... - Yahoo
1 day ago · Imagine taking a fertile fern leaf, shrinking it down and wrapping it up tightly into a tiny pellet. That’s basically what an unfertilized seed is – a highly modified dimorphic fern leaf, in a ...
Geometric nature necklace, Real fern leaf necklace, Nature ... - Etsy
4 days ago · This unique piece combines the timeless beauty of a real fern leaf with the contemporary appeal of geometric shape jewelry, all crafted in exquisite silver. The semi-circle …
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