Columbia subject headings:
Harvard subject headings:
Latin language--Terms and phrases.
Latin poetry--History and criticism.
Plant names, Popular--Rome.
Plants in literature.
Plants--Nomenclature
Rome--In literature.
Science, Ancient
Virgil--Knowledge--Botany.
Virgil--Language.
Princeton subject headings:
Botany--Italy--History.
Plants in literature.
Plants--Nomenclature.
Virgil--Knowledge--Botany.
Virgil--Language--Glossaries, etc.