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Fern, category of Pteridophytes (Pteridophyta), plants that have stems, real roots and especially leaves and a real vascular system. To say Fern it is like saying everything, because today there are 11,000 species, perhaps once there were even more, but to find out we would have to go back to very ancient times.
These are plants that appeared already in the lower Devonian, in fact, and that marked an important turning point. They are the first terrestrial plants which have begun to differentiate a fluid transport system. Said thus it seems a "simple" technical step, but it is by no means just this: just think that, precisely for this step Ferns they have been able to evolve registering a notable increase in height, unlike the mosses which have not been able to free themselves completely from aquatic life.
There Fern it is not a plant with seeds, it spreads in the environment through spores. Most of the species have real leaves, either with a whole leaf or in the form of "fronds", with various veins. In the second version it happens that, when the plant is young, the leaflets are rolled up at the apex, as they grow they spread out, but the most important thing about these leaves for Fern it is that, in their lower part, they contain several sporangia, often gathered in groups, essential for the reproduction of the plant.
According to the type of sporangium, modern ferns are divided into two groups: the eusporangiate and the leptosporangiate, but the general classification of the various types of Fern it is still a topic of discussion in the botanical world. From time to time there are also differences in the trunk which is sometimes only underground, others it comes out, as in the Tropical tree fern, and can reach a size similar to a palm tree.
Fern Koru: meaning and Maori tattoos
Koru is the Māori name given to the sprout of the New Zealand fern, called Ponga: it symbolizes new life, growth, strength and peace. Also in Maori this word graphically means "circle or node", a recurring figure in their sculptures and tattoos. We have to imagine a spiral that is inspired by the shapes of the leaves of the "silver fern"That unfold.
Circularity recalls perpetual movement, but also a return to the point of origin. In addition to numerous Maori tattoos and works of art, the Koru, and the Fern hidden in it, it also appears, stylized, in the logo of the Air New Zealand and is an iconic symbol of the flora of the New Zeland which also has one on the flag. In Japan, a reference to the Koru can be found in the Tomoe symbol, representing life in its cyclical progression, the harmony of existence, the strength of life and the growth of all that exists.
There Male fern, scientifically speaking Dryopteris filix-mas, has an entirely Greek name drys (oak) and pteris (fern), which tells of her: Fern that grows at the foot of the oaks. Thus the ancients wanted to identify it. It belongs to the Dryopteridaceae family and is the Most common fern, or almost, in the chestnut and oak woods where it stays cool and in the shade, giving lush bushes that reach up to 1 m in height, with leaves over 1 m long and serrated leaves.
We can find it, Male, up to 1700 m of altitude and its sporification period begins in June. From the point of view homeopathic and medicinal, today this plant is used in the veterinary field, between people it is no longer used. The roots, usually cut into cylindrical pieces, first have a sweetish and then nauseating taste, however they contain active ingredients from which the essence and oil they contain are extracted, and the filicin derivatives.
If we have an animal we may be interested in it filicina for its anthelmintic effect, against tapeworms. Men or animals, better not to eat there Male fern on a full stomach, together with alcohol or castor oil because it would be toxic.
Another species is the Aquilina fern - Pteridium aquilinum - with a root intuitively shaped like that of an animal. It is also quite large, because it can reach 2 meters in height. The root is large, consequently, and has fronds up to 1 meter long, over half a meter wide, and which magically turn red in autumn. A majestic sight, like a proud eagle.
The period of sporification of the F. Aquilina it is late spring, the areas of greatest diffusion are the temperate and subtropical regions, both in the northern and southern hemisphere. Specifically, our country hosts the Aquilina almost everywhere, even on the islands, and at any altitude, from the sea to the peaks of 2000 meters.
It usually lives in the woods, in the scrublands and in the pastures, it also becomes a pest when it takes possession of clearings and pastures, covering them very closely, sometimes also causing environmental degradation.
It is not among the best known species, like Fern, but boasts vermifuge properties. But let's use it with caution, because it is toxic and indigestion from raw can lead to serious poisoning, potentially lethal. This is true both for humans and for all monogastric animals.
From Boston, actually it comes from Asia and Oceania, here is one Evergreen fern small and medium-sized. This plant is not very present in our territory, it is more typical and widespread in areas with a tropical climate. It shows large tufts, long triangular-shaped fronds and composed of small, parallel, ribbon-shaped leaves, smaller and smaller as you get to the top.
The color of the leaves is the light greenbe they small or large, they have a jagged and slightly curled edge and can measure from 25 to 90 cm, creating rounded bushes. More than finding the Boston fern in the woods, walking, you will find it with pleasure as a houseplant: it is easy to grow and - very important - absorbs harmful substances released by solvents, paints and appliances.
The meaning, so linked to life, the shapes and colors, so varied, cannot remain on paper or imagined. Here's a 20 euro True fern, Cycus with fruit.
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