Apart from this, there a few economically important bryophytes such as the peat moss. The important characteristics of Pteridophytes are summarized below: Ø The division Pteridophyta includes primitive living and fossil vascular plants. 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. ADVERTISEMENTS: Here are your notes on the ecology of bryophytes! The evolution of seeds, pollen, and wood freed plants from the need for water during reproduction, allowed for more effective dispersal of sperm, increased We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. 5. 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. ABSTRACT. Fronds in the largest species of ferns can reach some six metres in length! 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. The liverworts and mosses grow on soil, on damp sand, on rocks, and on the trunks and trunks of standing and prostrate trees. They also grow in water (e.g., Ricciocarpos natans) and among other plants of fields and meadows, bogs, and marshes in temperate countries. The body of the sporophyte is well differentiated into roots, stem and leaves. Find PowerPoint Presentations and Slides using the power of XPowerPoint.com, find free presentations research about Classification Of Pteridophytes PPT 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. 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. Another important innovation of the bryophytes was the multicellular structures surrounding the gametes, called gametangia. The harvesting, processing, and sale of Sphagnum peat is a multimillion-dollar industry. There are also some purely aquatic ferns such as water fern or water velvet (Salvinia molesta) and mosquito ferns (Azolla species). In addition, most bryophytes absorb water and dissolved minerals over the surface of the gametophore. Pteridophytes are also used as a medicine. Besides being a lower plant, pteridophytes are economically very important. The group pteridophyta, the 'wing plants', is a diverse bunch of related plants. Forest college and research institute, Mettupalayam. Would you like to get the full Thesis from Shodh ganga along with citation details? Dry fronds of many ferns are used as a cattle feed. 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. 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 You can change your ad preferences anytime. Lal , B , Vats , S , Singh , RD and Gupta , AK ( 1996 ) Plants used as ethnomedicine and supplementary foodby Gaddis of Himachalpradesh, India . The pteridophytes present a great but poorly explored potential as ecological indicators (EIs), shown only in some sparse studies. Presented by : Sumita, The pteridophytes present a great but poorly explored potential as ecological indicators (EIs), shown only in some sparse studies. The term Pteridophyta was first coined by Haeckel. The root system is always adventitious. ADVERTISEMENTS: In this article we will discuss about the classification of pteridophytes. Pteridophytes are used in the horticulture. Pteridophytes constitute a significant and important group in the plant kingdom. It is harvested, processed and sold. Pteridophytes have a long geological history on our planet. And since conifers are almost trees, they create forests that provide habitat for wildlife. Looks like you’ve clipped this slide to already. 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. ( lat. Economic and Ecological Importance of Pteridophytes Psilotum – Whisk fern – Used in Green House Lycopodium obscurum – Christmas Green … You can change your ad preferences anytime. Some of them are Pteridophytes are used in the horticulture. Ruhmora adiantiformis is called the florist’s fern; since their leaf resists wilting they … 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. 3. 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. few taxa have received rigorous ecological study. Department of Botany, 4. 1. Pteridophytes ) or ( lat. See our Privacy Policy and User Agreement for details. If you continue browsing the site, you agree to the use of cookies on this website. Classification of Pteridophytes. Kumari, P (2011) Some ethno-medicinally important pteridophytes of India. In humid forests you can even find bryophytes growing on invertebrates. They don’t have conducting tissues for transportation of water and minerals. 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]. 2. Examples include ferns, horsetails and club-mosses. No public clipboards found for this slide. 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 … These are very common substrates throughout most of the world. Economic importance of the plants included in the syllabus. The different species of Selaginella are grown as the garden plants. Determination of minimum size of the quadrants for the study of community by species area curve. If you continue browsing the site, you agree to the use of cookies on this website. Study of ecological adaptation (morphological & anatomical) of xerophytes and hydrophytes. Clipping is a handy way to collect important slides you want to go back to later. ABC of Pteridophytes. Department of tree breeding 1. Gajendra C V Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. 22.4). Pteridophytes commonly known as Vascular Cryptogams, are the seedless vascular plants that evolved after bryophytes. 2. They can maintain the soil moisture and also help in the recycling of the nutrients in forest vegetation. Most people will have seen bryophytes growing on soil, rocks and tree trunks. They'll give your presentations a professional, memorable appearance - the kind of sophisticated look that today's audiences expect. They are seedless, vascular cryptogams: Pteridophytes are seedless, and they procreate through spores. The peat moss genus Sphagnum is an economically important bryophyte. Research scholar These are called EPIPHYLLOUS BRYOPHYTES and you can find out more by clicking on that link. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. […] Assistant Professor, World's Best PowerPoint Templates - CrystalGraphics offers more PowerPoint templates than anyone else in the world, with over 4 million to choose from. Ø They are known as ‘Vascular Cryptogams’ – cryptogams with vascular system. PGGC-11, Chandigarh. Looks like you’ve clipped this slide to already. THE ECOLOGICAL AND ECONOMIC IMPORTANCE OF GYMNOSPERMS SUMMARY PLANTS, PEOPLE, AND THE ENVIRONMENT: The California Coast Redwood Forest . Title: 2. 2 KEY CONCEPTS 1. This is especially true in the tropical rainforest and in wetland climates, like boglands and swamps. 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, 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. Instead, the water and minerals flow from the surface of the plant- cell to cell in the … Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. economic and medicinal importance of pteridophytes Humans have been dependent upon the plants as an important source of medicine since ancient times. Short classification of the ferns : Radosław Janusz Walkowiak. Bryophytes are very important in initiating soil formation on barren terrain, in maintaining … APIdays Paris 2019 - Innovation @ scale, APIs as Digital Factories' New Machi... No public clipboards found for this slide. Leafy liverworts in the genera Lejeunea, Cololejeunea, Odontolejeunea and Microlejeunea; the thallose liverwo… ADVERTISEMENTS: Some of the economic importance of Bryophytes are as follows: 1. Pteridophytes PPT, MCQ on Pteridophytes The Cryptogamia was further divided into Thallophyta. Ecological importance: The liverworts, mosses and lichens are supposed to be the pioneers in establishing vegetation where other vegetation seems to be practically impossible. View and Download PowerPoint Presentations on Classification Of Pteridophytes PPT. Pteridophytes do not have seeds or flowers either, instead they also reproduce via spores. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. 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). See our User Agreement and Privacy Policy. See our Privacy Policy and User Agreement for details. 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. They colonize the barren rocks and exposed areas of hills, and make them suitable for growing angiospermic and other […] Determination of moisture content and porosity of different types of soil. You can also find bryophytes on the leaves of vascular plants, especially in the tropics. Now customize the name of a clipboard to store your clips. Ø They were originated in the Silurian period and flourished in the Devonian period. They are important economically because they provide wood and used it in making buildings, furniture and paper. 6. 1. The different species of … Engler (1909) included the Bryophyta and Pteridophyta under Embryophyta. The Pteridophytes are an economically important group of plants. The Pteridophytes are an economically important group of plants. If you continue browsing the site, you agree to the use of cookies on this website. Gametangia protect gametes during development. Clipping is a handy way to collect important slides you want to go back to later. What is the prothallus of pteridophytes? Eichler (1883) divided the plant kingdom into Cryptogamia and Phanerogamia. Some of them are. And among the first of the plants to truly live on land were the Pteridophytes. Winner of the Standing Ovation Award for “Best PowerPoint Templates” from Presentations Magazine. PTERIDOPHYTES Now customize the name of a clipboard to store your clips. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. In certain ecosystems, these plants have a very important affect on the lives of the organisms surrounding them. See our User Agreement and Privacy Policy. The prothallus is the pteridophyte gametophyte (the haploid … Therefore, to analyze this potential, we reviewed published articles, websites, or books with pteridophytes as EIs, searching on … In these climates, moss balls form and absorb water. GENERAL CHARACTERS OF Botany Pteridophytes Class Notes for Students and Teachers of Life Science / Biological Science. INTRODUCTION AND DEFINITION • The Pteridophytes (Gk. Pteridophytes are vascular plants and have leaves (known as fronds), roots and sometimes true stems, and tree ferns have full trunks. International Journal of Medicinal and Aromatic Plants 1 : 18 – 22 . As bryophytes can survive on bare rock, they can initiate soil formation in any barren terrain of land. There are around 13,000 species of Pteridophytes. If you continue browsing the site, you agree to the use of cookies on this website. Bryophyta and Pteridophyta. Bryophyte - Bryophyte - Nutrition: Bryophytes generate their nutrient materials through the photosynthetic activity of the chlorophyll pigments in the chloroplasts. Examples include ferns, h… Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Pteridophytes are vascular plants and have leaves (known as fronds), roots and sometimes true stems, and tree ferns have full trunks. , processing, and to show you more relevant ads these are very important in soil... Kumari, P ( 2011 ) some ethno-medicinally important pteridophytes of India PowerPoint Templates from! Minimum size of the Standing Ovation Award for “ Best PowerPoint Templates ” from Presentations.! In forest vegetation Award for “ Best PowerPoint Templates ” from ecological importance of pteridophytes ppt.! 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