ecological importance of pteridophytes ppt

Dry fronds of many ferns are used as a cattle feed. words Pteron = feather and phyta = plants; means plants with feather like fronds or ferns) includes a group of primitive land plants with well developed vascular system • This group has been referred to as vascular cryptogams and classified by Carolus Linnaeus (1754) under the class Cryptogamia (Greek words kruptos = hidden and … Forest college and research institute, Mettupalayam. economic and medicinal importance of pteridophytes Humans have been dependent upon the plants as an important source of medicine since ancient times. ABSTRACT. The Cryptogamia was further divided into Thallophyta. Examples include ferns, horsetails and club-mosses. The group pteridophyta, the 'wing plants', is a diverse bunch of related plants. Now customize the name of a clipboard to store your clips. View and Download PowerPoint Presentations on Classification Of Pteridophytes PPT. They are seedless, vascular cryptogams: Pteridophytes are seedless, and they procreate through spores. ADVERTISEMENTS: Some of the economic importance of Bryophytes are as follows: 1. Therefore, to analyze this potential, we reviewed published articles, websites, or books with pteridophytes as EIs, searching on … Determination of moisture content and porosity of different types of soil. The body of the sporophyte is well differentiated into roots, stem and leaves. Engler (1909) included the Bryophyta and Pteridophyta under Embryophyta. They also grow in water (e.g., Ricciocarpos natans) and among other plants of fields and meadows, bogs, and marshes in temperate countries. And among the first of the plants to truly live on land were the Pteridophytes. If you continue browsing the site, you agree to the use of cookies on this website. Find PowerPoint Presentations and Slides using the power of XPowerPoint.com, find free presentations research about Classification Of Pteridophytes PPT Economic and Ecological Importance of Pteridophytes Psilotum – Whisk fern – Used in Green House Lycopodium obscurum – Christmas Green … Fronds in the largest species of ferns can reach some six metres in length! 22.4). APIdays Paris 2019 - Innovation @ scale, APIs as Digital Factories' New Machi... No public clipboards found for this slide. Looks like you’ve clipped this slide to already. Apart from this, there a few economically important bryophytes such as the peat moss. Ø They were originated in the Silurian period and flourished in the Devonian period. Research scholar […] Most people will have seen bryophytes growing on soil, rocks and tree trunks. INTRODUCTION AND DEFINITION • The Pteridophytes (Gk. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. Pteridophytes (ferns and lycophytes) are free-sporing vascular plants that have a life cycle with alternating, free-living gametophyte and sporophyte phases that are independent at maturity. 2 KEY CONCEPTS 1. Ruhmora adiantiformis is called the florist’s fern; since their leaf resists wilting they … What is the prothallus of pteridophytes? They are important economically because they provide wood and used it in making buildings, furniture and paper. Ecological importance: The liverworts, mosses and lichens are supposed to be the pioneers in establishing vegetation where other vegetation seems to be practically impossible. Pteridophyta Author: osmon Last modified by: ONI Created Date: 1/7/2001 9:16:29 PM Document presentation format: On-screen Show (4:3) Company – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 5955a4-OGFjY 1. Pteridophytes, also known as ‘vascular cryptogams’ and ‘ferns and fern allies’, comprise about 12 000 species of vascular plants that do not produce flowers or seeds, Short classification of the ferns : Radosław Janusz Walkowiak. They can maintain the soil moisture and also help in the recycling of the nutrients in forest vegetation. Department of tree breeding This is especially true in the tropical rainforest and in wetland climates, like boglands and swamps. ( lat. The modern classification of pteridophytes have been suggested by many scientist according to the Sporne(1975) pteridophytes have been classified into six classes.They are Psilopsida, Psilotopsida, Lycopsida, Sphenopsida, Pteropsida and Progymnospermopsida. See our User Agreement and Privacy Policy. The Pteridophytes are an economically important group of plants. The pteridophytes present a great but poorly explored potential as ecological indicators (EIs), shown only in some sparse studies. Examples include ferns, h… Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. The pteridophytes present a great but poorly explored potential as ecological indicators (EIs), shown only in some sparse studies. Bryophyta and Pteridophyta. Ø They are known as ‘Vascular Cryptogams’ – cryptogams with vascular system. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. In these structures, sperm cells are made in globular or club-shaped sacs called antheridia; eggs are produced singly in vase-shaped structures called archegonia (Fig. See our Privacy Policy and User Agreement for details. In addition, most bryophytes absorb water and dissolved minerals over the surface of the gametophore. Looks like you’ve clipped this slide to already. See our User Agreement and Privacy Policy. As the first true land plants, they offer a very favourable material for the study of various adaptations that have made the colonization of land possible for the plants. Economic importance of the plants included in the syllabus. They don’t have conducting tissues for transportation of water and minerals. The important characteristics of Pteridophytes are summarized below: Ø The division Pteridophyta includes primitive living and fossil vascular plants. Many ferns from tropical rain forests are epiphytes, which means they only grow on other plant species; their water comes from the damp air or from rainfall running down branches and tree trunks. Clipping is a handy way to collect important slides you want to go back to later. The peat moss genus Sphagnum is an economically important bryophyte. Eichler (1883) divided the plant kingdom into Cryptogamia and Phanerogamia. If you continue browsing the site, you agree to the use of cookies on this website. World's Best PowerPoint Templates - CrystalGraphics offers more PowerPoint templates than anyone else in the world, with over 4 million to choose from. They are important because many of trees grow in areas where the topsoil is frozen part of the year, making it hard for the roots to obtain water. In these climates, moss balls form and absorb water. You can also find bryophytes on the leaves of vascular plants, especially in the tropics. Peat is used in horticulture, as an energy source (fuel), and, to a limited extent, in the extraction of organic products, in whiskey production, and as insulation. 6. Pteridophytes have a long geological history on our planet. These are called EPIPHYLLOUS BRYOPHYTES and you can find out more by clicking on that link. The Pteridophytes are an economically important group of plants. These are very common substrates throughout most of the world. Besides being a lower plant, pteridophytes are economically very important. The root system is always adventitious. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. ABC of Pteridophytes. Botany Pteridophytes Class Notes for Students and Teachers of Life Science / Biological Science. Clipping is a handy way to collect important slides you want to go back to later. Pteridophytes constitute a significant and important group in the plant kingdom. You can change your ad preferences anytime. You can change your ad preferences anytime. The harvesting, processing, and sale of Sphagnum peat is a multimillion-dollar industry. Pteridophytes are also used as a medicine. Pteridophytes are vascular plants and have leaves (known as fronds), roots and sometimes true stems, and tree ferns have full trunks. Leafy liverworts in the genera Lejeunea, Cololejeunea, Odontolejeunea and Microlejeunea; the thallose liverwo… Study of ecological adaptation (morphological & anatomical) of xerophytes and hydrophytes. Gajendra C V Pteridophytes are the first true land plants: It is speculated that life began in the oceans, and through millions of years of evolution, life slowly adapted on to dry land. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. Pteridophytes commonly known as Vascular Cryptogams, are the seedless vascular plants that evolved after bryophytes. GENERAL CHARACTERS OF See our Privacy Policy and User Agreement for details. Pteridophytes (i.e., ferns and lycophytes) are an important group of plants to study because many new species are still being discovered in the Neotropics and they play important ecological roles in many ecosystems [12–15]. few taxa have received rigorous ecological study. They colonize the barren rocks and exposed areas of hills, and make them suitable for growing angiospermic and other […] It is harvested, processed and sold. There are also some purely aquatic ferns such as water fern or water velvet (Salvinia molesta) and mosquito ferns (Azolla species). They'll give your presentations a professional, memorable appearance - the kind of sophisticated look that today's audiences expect. ADVERTISEMENTS: In this article we will discuss about the classification of pteridophytes. Another important innovation of the bryophytes was the multicellular structures surrounding the gametes, called gametangia. Lal , B , Vats , S , Singh , RD and Gupta , AK ( 1996 ) Plants used as ethnomedicine and supplementary foodby Gaddis of Himachalpradesh, India . 2. THE ECOLOGICAL AND ECONOMIC IMPORTANCE OF GYMNOSPERMS SUMMARY PLANTS, PEOPLE, AND THE ENVIRONMENT: The California Coast Redwood Forest . Even today, many tribal communities and rural populations are dependent heavily upon the natural resources obtained from the surrounding forest regions for treatment of various ailments and diseases. Pteridophytes are used in the horticulture. Presented by : Sumita, As bryophytes can survive on bare rock, they can initiate soil formation in any barren terrain of land. The liverworts and mosses grow on soil, on damp sand, on rocks, and on the trunks and trunks of standing and prostrate trees. Pteridophytes are vascular plants and have leaves (known as fronds), roots and sometimes true stems, and tree ferns have full trunks. The different species of … Winner of the Standing Ovation Award for “Best PowerPoint Templates” from Presentations Magazine. ADVERTISEMENTS: Here are your notes on the ecology of bryophytes! International Journal of Medicinal and Aromatic Plants 1 : 18 – 22 . Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Some of them are Pteridophytes are used in the horticulture. 1. Kumari, P (2011) Some ethno-medicinally important pteridophytes of India. Would you like to get the full Thesis from Shodh ganga along with citation details? PGGC-11, Chandigarh. Therefore, to analyze this potential, we reviewed published articles, websites, or books with pteridophytes as EIs, searching on five scholar databases and also on Google. No public clipboards found for this slide. 2. Assistant Professor, Determination of minimum size of the quadrants for the study of community by species area curve. Now customize the name of a clipboard to store your clips. In humid forests you can even find bryophytes growing on invertebrates. Bryophyte - Bryophyte - Nutrition: Bryophytes generate their nutrient materials through the photosynthetic activity of the chlorophyll pigments in the chloroplasts. The term Pteridophyta was first coined by Haeckel. PTERIDOPHYTES Classification of Pteridophytes. Title: 2. Department of Botany, In certain ecosystems, these plants have a very important affect on the lives of the organisms surrounding them. Pteridophytes PPT, MCQ on Pteridophytes If you continue browsing the site, you agree to the use of cookies on this website. Pteridophytes ) or ( lat. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Pteridophytes do not have seeds or flowers either, instead they also reproduce via spores. If you continue browsing the site, you agree to the use of cookies on this website. Bryophytes are very important in initiating soil formation on barren terrain, in maintaining … 5. There are around 13,000 species of Pteridophytes. 4. 1. The different species of Selaginella are grown as the garden plants. That these taxa have thus far been reported mainly from dystrophic and mesotrophic waters may be the result of limited sampling effort or taxonomic confusion with morphologically similar forms. 3. The evolution of seeds, pollen, and wood freed plants from the need for water during reproduction, allowed for more effective dispersal of sperm, increased Instead, the water and minerals flow from the surface of the plant- cell to cell in the … The prothallus is the pteridophyte gametophyte (the haploid … And since conifers are almost trees, they create forests that provide habitat for wildlife. Pteridophytes: General Characteristics PPT by Easybiologyclass, Customer Code: Creating a Company Customers Love, Be A Great Product Leader (Amplify, Oct 2019), Trillion Dollar Coach Book (Bill Campbell). Gametangia protect gametes during development. Some of them are. : in this article we will discuss about the classification of pteridophytes PPT you want go... A cattle feed Selaginella are grown as the peat moss through spores Presentations a,. You agree to the use of cookies on this website certain ecosystems, these plants have a long geological on! 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Continue browsing the site, you agree to the use of cookies on this website conifers are almost,!, ecological importance of pteridophytes ppt ( 2011 ) some ethno-medicinally important pteridophytes of India and absorb water largest species of ferns reach! Presentations Magazine the tropics and flourished in the Devonian period slides you want to go back to later ( )... By: Sumita, Assistant Professor, Department of botany, PGGC-11, Chandigarh find bryophytes on lives. On that link in any barren terrain of land and tree trunks some! They also reproduce via spores clipboard to store your clips professional, memorable appearance - the kind of look. The name of a clipboard to store your clips provide wood and used it in buildings. H… slideshare uses cookies to improve functionality and performance, and sale of peat...

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