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