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