Botany (Section 1) PDF
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Dr. Khalid Saad Emara
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Summary
This document discusses various plant types, including algae, mosses, and ferns. It includes details of their life cycles and notable features, like the dominant sporophyte phase in gymnosperms, and is useful for students studying plant taxonomy and/or biology.
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# General Biology (103 ABT) ## Part (3): Principles of Plant Taxonomy ### Section (1) **By** Dr. Khalid Saad Emara Associate Professor, Fac. of Agric., Cairo Univ. [email protected] ### Agenda #### Plant Kingdom: Some non-flowering divisions 1. Algae (Green algae) - Spirogyra 2. Mosses (B...
# General Biology (103 ABT) ## Part (3): Principles of Plant Taxonomy ### Section (1) **By** Dr. Khalid Saad Emara Associate Professor, Fac. of Agric., Cairo Univ. [email protected] ### Agenda #### Plant Kingdom: Some non-flowering divisions 1. Algae (Green algae) - Spirogyra 2. Mosses (Bryophyta) - Funaria 3. Tracheophyta (Ferns) - Dryopteris 4. Gymnosperms (Confirophyta) - Pine **By: Dr. Khalid S. Emara** # Plant Kingdom ## Some non-flowering divisions ### 1. Algae (Green algae) **By: Dr. Khalid S. Emara** ## Vegetative filament dominant phase in life cycle (Spirogyra condensata) - Cytoplasmic strands - Lining cytoplasm - Primary cell wall coated with mucilage - Vacuole - Nucleus - Dentate Spiral ribbon-shaped chloroplast - Pyrenoids **By: Dr. Khalid S. Emara** ## Sexual phase non-dominant phase in life cycle (Spirogyra condensata) - Different types of protrusion - Protrusions be met - Female gamete - Male gamete - Conjugation tube - Zygospore - Empty cell **By: Dr. Khalid S. Emara** ## 2. Mosses Bryophyta **By: Dr. Khalid S. Emara** ## Sporophyte depends on gametophyte (Funaria hygrometrica) - Female gametophyte - Cluster of leaves - Leaf-like - Stem-like - Rhizoids - Apophysis - Calyptra - Stalk - Foot - Sporophyte - Capsule **By: Dr. Khalid S. Emara** ## L.S. of apex of male gametophyte (Funaria hygrometrica) - Involucre - Receptacle/torus - Antheridia - Paraphyses **By: Dr. Khalid S. Emara** # Plant Kingdom (83) ## II - Mosses Gametophyte dominant phase in life cycle (Funaria hygrometrica) Modified after: The Photographic Atlas of Botany (Practical) **By: Dr. Khalid Saad Emara** # 3. Tracheophyta Pteridophyta (Ferns) **By: Dr. Khalid S. Emara** ## Heart-shaped gametophyte non-dominant phase in life cycle (Dryopteris filix-mas) - Prothallus - Archegonia - Cushion - Rhizoids - Antheridia - Archegonia - Antheridia - Rhizoids **By: Dr. Khalid S. Emara** ## Sporophyte depends on heart-shaped gametophyte (Dryopteris filix-mas) - Sporophyte - Primary leaf - Primary stem - Primary root - Heart-shaped gametophyte - Rhizoids - Sporophyte leaf - Sporophyte shoot tip - Sporophyte root **By: Dr. Khalid S. Emara** ## Sporophyte dominant phase in life cycle (Dryopteris filix-mas) - Pinna with pinnules have true indusium sorus - Rachis - Petiole - Coiled young frond - Soil surface - Rhizome - Node - Internode - Adventitious roots **By: Dr. Khalid S. Emara** # 4. Gymnosperms Confirophyta **By: Dr. Khalid S. Emara** ## Sporophyte dominant phase in life cycle (Pine) - Male cones - Needle shaped leaves - Dwarf stem - Female cone - Short shoot - Scales - Node - Internode - Long shoot **By: Dr. Khalid S. Emara** ## L.S. in sporophyte female cone (Pine) - Megasporangia - Ovuliferous scale - Bract - Axis - Ovuliferous scale - Sterile bract - Pine cone axis - Microphyle - Ovule **By: Dr. Khalid S. Emara** ## L.S. in sporophyte male cone (Pine) - Pollen grains - Microsporangia - Microsporophyll - Axis **By: Dr. Khalid S. Emara** ## Thanks are due to Late Emeritus Prof. Dr. Awatif Megahed for her revision to the drawings **By: Dr. Khalid S. Emara** # Till The Next Section **Text Main page contents**
