Please enable JavaScript.

Coggle requires JavaScript to display documents.

Chapter 20: Nonvascular Plants (Concepts (Characteristics (life cycle…

- - - - sporophyte
      - gametophyte
- - - - thin along edges, thick center
      - heart or ribbon shaped
      - cholrophyllous lamellae grow upward
    - - numerous chambers
      - mucilage
- - - - leafy stems "gametophores"
      - grow from apical meristem
      - slender stems and little tissue differentation
      - stomata do not occur
    - - hydroids
        
        elongated cells lose cytoplasm
        
        conduct water and minerals
      - leptoids
        
        resemble sieve dells
        
        retain cytoplasm
      - capillary action
      - rhizoids
        
        anchor stem
        
        small, multicellular trichome-like
        
        do not absorb water or minerals
        
        lack chloroplasts
    - - protonema
        
        numerous chloroplasts
        
        perennial
        
        produces many buds
    - - oogamous
        
        biflagellate sperm cells
        
        large nonmotile egg cells
      - sperms
        
        produced in antheridia
        
        short stalks
        
        outmost sterile cells
        
        inner mass cells become sperm
      - eggs
        
        occur in archegonia
        
        shaped like a vase
        
        neck is hollow at maturity
  - - - foot
      - capsule
      - seta
    - - true epidermis with stomata
      - operculum
        
        separates from rest
      - peristome teeth
      - calyptra
- - - - thin leaves resembling moss
      - two rounded lobes
      - no ribs/no conducting tissue
      - three clearly defined row of leaves
    - - flat, ribbon like bilaterally symmetrical
      - body lacking roots, stems, or leaves
      - airpores