Medullosales
Автор:
Jesse Russell,Ronald Cohn, издатель:
"VSD", ISBN:
978-5-5107-8083-3
High Quality Content by WIKIPEDIA articles! The Medullosales is an order 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-lik