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