rhynia
noun
rhy·nia
| \ ˈrīnēə\
Definition of rhynia
1
capitalized
: a genus (the type of the family Rhyniaceae) of small leafless dichotomously branching fossil plants with terminal sporangia, a primitive stele, and smooth branching rhizomes — compare horneophyton
2
plural -s
: any plant or fossil of Rhynia or a closely related genus
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