I mentioned in my last post, on the Green Man, having the Mira Calligraphae Monumenta as a design source.
If you've looked up the prices of the book, and fainted - yes, this is the most expensive book I own. But there are 3 paperback 'extract' books taken from it - one on the calligraphy, one on the pen art and "Nature Illuminated" (the one that would interest us) - $10ish on Amazon for the hardback.
"Nature Illuminated reproduces forty-one pages from the original codex. Those who love and collect beautiful books will be endlessly fascinated by Hoefnagel's imagery and invention. The accompanying commentary identifies and explains the details of Hoefnagel's exquisitely crafted illuminations." (Amazon)