Rhynia

Từ điển Oxford Learners Wordfinder Dictionary

noun

type genus of the Rhyniaceae;
small leafless dichotomously branching fossil plants with terminal sporangia and smooth branching rhizomes
• Syn:
genus Rhynia
• Hypernyms:
fern genus
• Member Holonyms:
Rhyniaceae, family Rhyniaceae