genus Rhynia


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Noun1.genus Rhynia - type genus of the Rhyniaceaegenus Rhynia - type genus of the Rhyniaceae; small leafless dichotomously branching fossil plants with terminal sporangia and smooth branching rhizomes
fern genus - genera of ferns and fern allies
family Rhyniaceae, Rhyniaceae - primitive plants of the Paleozoic