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