Matching Plant Images Internally

[Mark Knowles]

I think one point of distinction is the degree of accuracy of the author/artist. The question is whether in certain instances two drawings were intended to be drawings of the same plant, but look somewhat different due to lack of care on the author/artist's behalf. How meticulous was the author/artist in drawing the various plants and how sloppy were they? I am inclined to think that they weren't that careful. Did they refer back to their other illustrations much or did they draw from memory?