Amazing Ferns - one of the Oldest Plants
The majority of ferns belong to the
Polypodiaceae or the Polypody family. A typical plant consists of
triangular fronds that are further divided into leaflets and
smaller leaflets known as pinnae and pinnules. The fern is found
throughout the world, and mostly grows in damp places even though
certain species of the plants are known to grow in dry places such
as rocks, soil or even the crevices of big rocks. A number of
species also grow on tress and are known as epiphytes. These plants
vary greatly in shape, size and even the color of the leaves.
Certain species of the fern plant are only a few centimeters high
while certain plants, such as the tree ferns that are found in the
tropical region are up to 80 feet high.
As for the structure of a fern, it consists of
the leafy branches that are known as fronds. The fronds are made up
of small leaflets that are known as pinnae. Underneath the fern
frond are the patches that are actually spores contained inside
casings collectively known as sporangia. However, all species of
ferns do not have spores underneath the fronds. The ones that have
the spores are known as fertile fronds. This plant is vascular i.e.
it has an internal vein structure that supports the flow of water
and nutrients to the fern plant. A fern grows well only in the
regions where it receives adequate moisture unlike the other
vascular plants that survive even in dry
conditions.
The ferns are known to reproduce by an alteration of generations.
The fern is asexual, also called the sporophyte generation. The
spores, or rather the sporangia i.e. groups of spores cases, are
formed on the underside of the leaves of the plant. When the
sporangium dries up, it breaks and the sporangia are scattered in
the wind that carries them to far off places. When the spore finds
suitable conditions, it grows into a gametophyte, the stage between
the spore and the adult plant. On finding conducive moist
conditions, the gametophyte grows into an adult plant. These plants
can be found anywhere in the world, except the Antarctica, and a
number of species are found in the United States. The tropical
species of the fern plant are found in the rain forests of Asia,
Africa, Australia and Polynesia.
This plant is used in many other ways than just
serving as an ornamental plant. The underground stems of many
species of the fern plant serve as food in Asia. Even in Europe,
the leaves of certain species are eaten as a source of vitamins and
minerals. The Maidenhair ferns are used in various herbal medicines
as a cure for respiratory disorders while a number of other species
of the fern plant are believed to possess medicinal properties.
Though ferns are amazing plants, they will not
take care of themselves. A little education in the care of
this graceful plant - and proper care and watering - will provide
you with a specimen plant you can be proud of for years.
Though ferns need sunlight to survive, excessive
exposure to sunlight can kill a fern. Keep it out of the direct
line of the burning rays of the sun, but not in an area that is
totally dark; partial shade is optimal.
On the opposite end of the spectrum, ferns have
an aversion to cold weather. Cold weather will kill the plant
particularly if the cold causes the fronds of the fern to
freeze. There is no recovery for a frozen plant.
These plants like somewhat moist soil with constant moisture
levels. Daily watering and a light soil mix are required for
proper maintenance and growth.
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