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Definition of Genus Rhynia
1. Noun. Type genus of the Rhyniaceae; small leafless dichotomously branching fossil plants with terminal sporangia and smooth branching rhizomes.
Exact synonyms: Rhynia
Generic synonyms: Fern Genus
Group relationships: Family Rhyniaceae, Rhyniaceae
Generic synonyms: Fern Genus
Group relationships: Family Rhyniaceae, Rhyniaceae