This was a compelling examination of the VM by a botanist.
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Research suggests that Mexico, rather than Europe, may be key to famously indecipherable botanical document
https://www.theguardian.com/books/2014/feb/07/new-clue-voynich-manuscript-mystery
I think the Gordon Rugg quote in that article makes sense; but you do get a kind of ‘Lewis and Clark journal’ feeling from some parts of the MS; of an explorer making notes of new species that he encounters.