- You need to recognize sporophyte of Psilotum
- Psilotum sporophyte consists of only one plant organ: the stem
- The sporophyte is the dominant generation. Sporangia produce spores by meiosis. Gametophytes are non-vascular and live underground.
Molecular evidence places the psilophytes into the same clade as ferns, hence this group was covered with the ferns.
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