Sporangia produce spores that develop into tiny, heart-shaped gametophytes.
Gametophytes of extant genera are green, photosynthetic,and have a long ribbon shaped thallus.
Sporangia produce spores that develop into green, photosynthetic gametophytes.
Sporangia produce spores that develop into what gametophytes?
Options:
  - peachleaf willow
  - green photosynthetic
  - Chlorophyll
  - photosynthesis
  - Most plants
  - graptolites
  - members of their own species
  - in the autumn season