medullosalean
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English[edit]
Etymology[edit]
Medullosales + -an
Noun[edit]
medullosalean (plural medullosaleans)
- (botany) Any of the order Medullosales of pteridospermous seed plants characterised by large radiospermic ovules with a vascularised nucellus, complex pollen-organs, stems and rachises with a dissected stele, and frond-like leaves.