| Note that, although it is the more complex pattern, branching veins appear to be and in some form were present in ancient as long as 250 million years ago | Vein skeleton of a Hydrangea leaf• ASU - Ask A Biologist |
|---|---|
| - a flattened photsynthetic stem, if very leaf-like then it is called a Phylloclade• ASU - Ask A Biologist | A pseudo-reticulate venation that is actually a highly modified penniparallel one is an of some , which are monocots, e |
ASU - Ask A Biologist, Web.
.
13.
24