Economic importance of pteridophytes. Sex organs are multicellular and jacketed. Describe the distribution and other general characteristics of Pteridophytes. 0000206418 00000 n 0000207313 00000 n 8. General characters of Pteridophytes. They occupy the position between bryophytes and Spermatophytes. Plant body is a sporophyte (2n) and differentiated into true stem, leaves and roots. 4. 0000017332 00000 n 0000015121 00000 n Before sharing your knowledge on this site, please read the following pages: 1. Instead, the water and minerals flow from the surface of the plant- cell to cell in the … The different species of Selaginella are grown as the garden plants. Learn more: Lecture Note in Pteridophytes Characteristics 0000160781 00000 n Spores may be similar (homosporous) as in majority of pteridophytes e.g., Pteris Adiantum. Pteridophytes are vascular cryptogams. Which organelle is known as “power house” of the cell? startxref 2. Extant pteridophytes are cosmopolitan but are much better represented in the humid tropics, with only a few families (e.g., Dryopteridaceae) well represented in subtropical and temperate regions and rather few extending into alpine regions (e.g., Woodsiaceae) and more arid regions (most notably Pteridaceae subfam. %%EOF PTERIDOPHYTES: CHARACTERISTICS AND EXAMPLES; CLASS PRESENTATION. 0000205227 00000 n Welcome to BiologyDiscussion! It is inoculated to paddy fields to function as biofertilizer. Leaves bearing sporangia are called sporophylls. Pteridophytes are used in the horticulture. Difference between Bryophytes and Pteridophytes | Plant Kingdom, Algae: Characters and Economic Importance | Plant Kingdom, Essential Features of Ferns | Plant Kingdom. General characteristics of Pteridophyta - definition. Azolla, Salvinia, Marsilea are aquatic. Bryophytes play an important role in an ecosystem by providing water and nutrients to other plant living alongside bryophytes. 3. Share Your PDF File ... ECONOMIC IMPORTANCE. Pteridophytes are also used as a medicine. 0000071437 00000 n Leaves can be microphyllous (small without forming leaf gaps in vascular … 5777 45 Heteromorphic or heterologous alternation of generations is present in the life cycle. 11. 5777 0 obj <> endobj Various animals use the fronds as food while birds and small creatures use the plants for cover. Pteridophytes are used in the horticulture. Download PDF for free. Name the types of nitrogenous bases present in the RNA. The main plant body is a sporophyte. Describe the classification of Pteridophytes. As these plants do not produce either flowers or seeds, they are called as cryptograms. 7�J�aL����|�m�&�.d� a��c������,����_]i�8`P��֭��Ш.a�q�����'3�u�� Equisetum stems have been used in scouring (cleaning of utensils) and polishing of metals. 0000012346 00000 n plants with feather like leaves). h�b```b``+g`c`�db@ !�;���0%r������2�� �����������]�� 3Ysx{��:|=�9�������[��Y���ӣ 7. Definition of Pteridophytes. They are also termed as vascular plants (containing xylem and phloem tissues). Biology, Living Organism, Diversity, Plant Kingdom, Vascular Plants, Pteridophytes. General characteristics of Pteridophyta - definition. The group pteridophyta, the 'wing plants', is a diverse bunch of related plants. Like other plants, pteridophytes con­stitute a good source of food to animals. Instead, sieve cells are present. Pteridophytes are vascular plants and have leaves (known as fronds), roots and sometimes true stems, and tree ferns have full trunks. ADVERTISEMENTS: 2. Plant body is a sporophyte (2n) and differentiated into true stem, leaves and roots. (c) Generally tap root is present and some plants have fungal association called Mycorrhiza which fix nitrogen from atmosphere. The Pteridophytes are an economically important group of plants. 0000012626 00000 n Characteristics of Pteridophytes and Economic importance In some pteridophytes the gametophyte is protected by remaining in the spores of the previous sporophyte generation. It is differentiated into root, stem and leaves. Short classification of the ferns : Radosław Janusz Walkowiak. 0000005625 00000 n The innhabitants of dry land are Selaginella rupestris, Selaginella lepidophylla, Equisetum arvens etc. The different species of Selaginella are grown as the garden plants. Disclaimer Copyright, Share Your Knowledge Dry fronds of many ferns are used as a cattle feed. It is differentiated into true root, stem and leaves. Vascular tissues (xylem and phloem) are present. ��B��6(�a�s��z���kI]� �̧YN-`}. Pteridophytes are the first true land plants. ( lat. Plants (sporophyte) reproduce by spores formed in sporangia. Our mission is to provide an online platform to help students to share notes in Biology. 0 Some extend to sandy soils. The angiosperms are a large group and include herbaceousplants, shrubs, grasses, and most trees. Important features of gymnosperms are:(a) The plant bears naked seeds i.e., the seeds of these plants are not enclosed in ovary walls. 0000002221 00000 n Ecological importance: The liverworts, mosses and lichens are supposed to be the pioneers in establishing vegetation where other vegetation seems to be practically impossible. And among the first of the plants to truly live on land were the Pteridophytes. 0000016767 00000 n They formed the dominant part of the earths during Palaeozoic and Mesozoic periods on soral evolution. What are the characters Mendel selected for his experiments on pea plant? 2. TOS4. The word “Gymnosperm” comes from the Greek words “gymnos”(naked) and “sperma”(seed), hence “Naked seeds.” Gymnosperms are the 0000017519 00000 n Pteridophytes shows large variation in the form, size and habit various animals use the fronds as while... Food for herbaceous mammals, birds and small creatures use the fronds as food while birds other! And tracheophytic Janusz Walkowiak, reproduction, life cycle sieve tube are absent is protected remaining! As ornamental plants for their delicate and graceful leaves and sieve tube are.! Spores of the cell either flowers or seeds, they are also termed vascular., life cycle in this article we will discuss about the characters Mendel for! Conducting tissues for transportation of water and nutrients to other plant living alongside bryophytes within acarpel File... Termed as vascular plants bryophytes are as follows: 1 have been used the... Some are aquatic like Azolla.Salvinia lepidophylla, Equisetum arvens etc online platform help! 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