In his epic work, von Martius outlined the modern classification of palm, produced the first maps of palm biogeography, described all the palms of Brazil, and collated the sum of all known genera of the palm family. Apart from his own collection of specimens and notes, von Martius also wrote about the findings of others. Von Martius's folio is unusual in its inclusion of cross-sectioned diagrams, conveying the architecture of these mighty trees, which central Europeans would have found hard to imagine accurately.