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Chapter 20 (Nonvascular Plants (Bryophytes (Mosses (Sporophyte generation,…

- - - - Gametophytes
        
        Leafy stems
        
        Rhizoids
        
        Small multicellular trichome-like structures
        
        Serve as anchor
        
        Protonema
        
        Branched system of similar cells
        
        Antheridia
        
        Microgametangia where sperm is produced
        
        Archegonia
        
        Megagametangia that produces eggs
      - Hydroids
        
        Conduct water and dissolved minerals
        
        Leptoids
        
        Sieve like cells
      - Sporophyte generation
        
        Foot
        
        Small, bulbous tissue at the bottom of archegonia
        
        Capsule
        
        Upper cell division and expansion into a simple apical sporangium
        
        Operculum
        
        Apex of the sporangium differtiating into a caplike lid
        
        Peristome teeth
        
        Exquisitely complex teeth resulting from cell breakage
        
        Seta
        
        Narrow stalk between foot and sporangium
        
        Calyptra
        
        Cover of the apex of sporangium
  - - - Leafy
        
        Similar to moss but have two rounded lobes and no midrib
        
        Gametophores either bisexual or unisexual
        
        Gametangia mixed with regular leaves or placed on specialized branches
      - Thallose
        
        Flat and ribbon like
        
        Thallus
        
        Body of liverwort
        
        Antheridiospore
        
        Umbrella outgrowth produced by males
        
        Archegoniospores
        
        Radiant fingers that project outward and droop downward
      - Sporophyte generation
        
        Elaters
        
        Single elongate cells with spring shaped walls
  - - - Group of small inconspicuous thalloid plants