Problem:
I'm currently working on extracting some features of the leaf architecture based on their images (like L:W ratio, laminar shape, ...). I use the Manual of Leaf Architecture as the reference. It is really great in mathematically describing the features and how to calculate them.
But, the problem is I am not able to find a source (a book, or a data set) to have this architecture of different leaves (plants). For example, whether the Acer genus has leaves with a certain (or a range of) L:W ratio or the laminar shape for this species is mainly ovate,....
Any ideas? Or better yet, pointers to places where this has already been answered?