Frond is a fern. Features of the structure and purpose

Date:

2018-03-22 03:54:07

Views:

640

Rating:

1Like 0Dislike

Share:

Table of contents:

Ferns are vascular plants, whose structure is much more complex than mosses, but easier than in gymnosperms and angiosperms. Consider that such fronds – one of the organs of a fern.

Structure

The Body of a fern consists of the root and the stem on which the fronds – bodies that look like leaves but are are not. Their feature – badly cut. On the lower side of these listopadnyh bodies can be observed small tubercles, which in science are called sporangia. It is here that spores are responsible for reproduction of plants. Flowers and seeds, ferns have not.

fronds it

Interestingly, the ferns are still no leaves but has leaf blades. It happened because of a seal in the fronds, which helped to create the plate, like the leaf of a flowering plant. However, they still was not formed. Vaya does not give a clear answer to the question of where the stalk ends and the leaf begins.

Distinctive traits

Fronds – the authority inherent in pteridophytes, higher flowering plants, they do not exist. How do they differ from leaves?

  • Most Often grow from rhizomes.
  • The Presence of apical or lateral growth. In flowering this feature is inherent in the shoots.
  • Young fronds at the beginning of his growth like a snail and twisted into spiral form.

Due To these features of the fronds also known as predpolagat.

what are fronds

Palm – lystopadovyi organs which can have different appearance:

  • Lancet.
  • Triangular.
  • Simple.
  • Highly dissected and resemble the fanciful horns of a deer.

Some of these leaves can russicats twice and even three times, so they look delicate and very beautiful. Thanks to this feature ferns are often used as ornamental plants and as an element of composition in landscape design. The colour of these green bodies, rich. In some species the fronds are bright, with a dark streaked in the middle. Other types adorned with an original patina under the rust. Also you can find plants with silver or purple fronds.

Recommended

"Knowledge is light and ignorance is darkness": the value, meaning and alternatives

There are some sayings that would seem to need no explanation, such as “teaching & ndash; light and ignorance – darkness”. But some still do not understand their meaning. But not only for such people is written by our article. I...

What was invented by Mendeleev for the army. The history and fate of the invention

What was invented by Mendeleev for the army. The history and fate of the invention

D. I. Mendeleev was a brilliant Russian scientist-polymath, who made many important discoveries in various fields of science and technology. Many people know that he is the author of “Fundamentals of chemistry" and the periodic law of chem...

The origin of the Slavs. The influence of different cultures

The origin of the Slavs. The influence of different cultures

Slavs (under this name), according to some researchers, appeared in the story only in 6 century ad. However, the language of nationality bears the archaic features of the Indo-European community. This, in turn, suggests that the origin of the Slavs h...

ferns are called fronds

The Size of preparerow is largely dependent on the plant species and may be from centimeters to several meters (in the tree).

Purpose

We have seen that ferns have fronds are called organs, resembling leaves. They perform the essential functions. That they contain sporangia with spores. The process of photosynthesis in ferns occurs in these organs.

fronds it

Some species have fronds of two forms:

  • Alone are responsible for the photosynthesis process;
  • Located on the second sporangium.

I Wonder what palm Sunday – it is bodies that are not only ferns, but also trees. Their shape and size depend on specific species of plants. For example, date palms, these sheet-like bodies consist of two parts: the base, which is attached to the stem, and leaf, first narrow, then widening. Their length is on average 25 cm, shaped like a feather.

Fronds – bodies of ferns, which resemble the leaves. Thanks to this structure, these plants are more complex compared to mosses.


Article in other languages:

AR: https://tostpost.com/ar/education/11469-frond-is-a-fern-features-of-the-structure-and-purpose.html

BE: https://tostpost.com/be/adukacyya/20539-vayi-geta-l-sce-paparac-asabl-vasc-budovy-pryznachenne.html

DE: https://tostpost.com/de/bildung/20547-wedel-ist-ein-farn-bl-tter-merkmale-der-struktur-und-zweck.html

ES: https://tostpost.com/es/la-educaci-n/20562-wuyi-es-hojas-de-helecho-caracter-sticas-de-la-estructura-y-la-asignac.html

HI: https://tostpost.com/hi/education/11482-frond.html

JA: https://tostpost.com/ja/education/11482-frond-is-a-fern-features-of-the-structure-and-purpose.html

KK: https://tostpost.com/kk/b-l-m/20536-vayi-b-l-zhapyra-tary-paporotnika-rylysyny-erekshel-kter-zh-ne-ta-ayyn.html

PL: https://tostpost.com/pl/edukacja/20502-vayi-to-li-cie-paproci-cechy-budowy-i-funkcje.html

PT: https://tostpost.com/pt/educa-o/20504-folhas-folhas-de-samambaia-caracter-sticas-de-constru-o-e-atribui-o-de.html

TR: https://tostpost.com/tr/e-itim/20544-vayi-bu-e-reltiotu-yapraklar-yap-sal-zellikleri-ve-randevu.html

UK: https://tostpost.com/uk/osv-ta/20522-vay-ce-listya-paporot-osoblivost-budovi-ta-priznachennya.html

ZH: https://tostpost.com/zh/education/12272-frond-is-a-fern-features-of-the-structure-and-purpose.html






Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

Comments (0)

This article has no comment, be the first!

Add comment

Related News

Is it possible to accurately determine how many weeks in a year?

Is it possible to accurately determine how many weeks in a year?

People in ancient times learned to measure time. The day was considered in the alternation of night and day, months – on the transition of moon in various phases, years – the transition of seasons. Now we all probably ...

The specialty

The specialty "journalism" in the universities of St. Petersburg: list of top schools

One of the most interesting, but difficult jobs is journalism. Universities St. Petersburg, where there is such a Department can not only give the basic idea of this specialty, but to teach how to become a real journalist. As a ru...

Voronezh Institute of Economics and social administration: address, reviews

Voronezh Institute of Economics and social administration: address, reviews

In the 90-ies in Russia in connection with the ongoing democratic transformations began to appear in new universities. One of them was opened in Voronezh. It was called the Institute of Economics and securaplane (VIES). His exact ...

The indicators of humidity. Absolute humidity

The indicators of humidity. Absolute humidity

If the average person, the absolute humidity in the home has the comparative value and only affects the comfort of the indoor climate or the relative perception of the state of the weather outside, at the professional level, many ...

Biography of Vladimir Komarov and interesting facts of life

Biography of Vladimir Komarov and interesting facts of life

the Spaceport «Baikonur" at 3 a.m. on 23 April 1967 took of two famous explorers of space: Yuri Gagarin and Vladimir Komarov. In this fateful night, Yuri as a backup test, but first and foremost as a friend escorted his...

Interesting school paper: original solutions

Interesting school paper: original solutions

currently, the media have a serious impact on the lives of the younger generation. How to help your child not to get lost in this thread? The school paper is ideal for mastering the child the skills, abilities information work. S...