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Nonvascular Plants (Division Bryophyta: Moses (The Sporophyte Generation…

- - - - Gametophores
        
        Leafy stems of mosses
    - - Hydroids
        
        Cells that conduct water and minerals
      - Leptoids
        
        Cells that resemble sieve cells
      - Rhizoids
        
        Small, multicellular structures that penetrate substrates
        
        Lack chloroplasts and have reddish walls
    - - Protonema
        
        Systems of chlorophyllous cells
    - - Antheridia
        
        Microgametangia that produces sperm
      - Archegonia
        
        Megagametangia that produces eggs
  - - - Bulbous tissue made by basal cell division
    - - A simple apical sporangium
    - - A narrow stalk between the foot and the capsule
    - - A caplike lid that was differentiated from the apex
    - - Cells that open the sporangium
    - - Layer of cells derived from the archegonium
- - - - Leafy liverworts
        
        Greatly resemble moss
      - Thallose liverworts
        
        Thallus
        
        A body without roots or stems
        
        Air pores
        
        Air chambers that open to the exterior
    - - Umbrella-shaped outgrowth
    - - Set of radiating fingers that project outward and downward
  - - - Elongated single cells with spring-shaped walls
- - - - Plants that have no vascular tissue or seeds
    - - Have vascular tissue, but no seeds
    - - Have both vascular tissue and seeds