Well, In my parent's farm, there are quite interesting plants (Acacia mangium species) whose top of leaf attached with some leaves of other (Mimosa pudica). I mean that the leaves of Mimosa pudica actually growing on the top of those of Acacia mangium species. The figure files attached here shows this phenomenon. Could you give me a single explanation, please?
Hello,
It's NOT Mimosa pudica and is a classical case of "heterophylly" which is very common in Acacia genus where different kind of leaves come out during dvelopment, esp. during phyllode formation:
https://books.google.com/books?id=uUQ_DAAAQBAJ&pg=SA15-PA12&lpg=SA15-PA12&dq=acacia+heterophylly&source=bl&ots=5_joGrcbwn&sig=h_lw5dY4qG8IMB_sBmj1ltg4ytg&hl=en&sa=X&ved=0ahUKEwiuooiCpfbVAhUDLmMKHd-JAKoQ6AEISTAI#v=onepage&q=acacia%20heterophylly&f=false
https://books.google.com/books?id=MBnyBwAAQBAJ&pg=PA114&lpg=PA114&dq=acacia+heterophylly&source=bl&ots=oRjBDUwjR0&sig=rwITKzGdFSqPFA0XvFyUS5jBlnk&hl=en&sa=X&ved=0ahUKEwiuooiCpfbVAhUDLmMKHd-JAKoQ6AEIVzAM#v=onepage&q=acacia%20heterophylly&f=false
https://www.google.com/search?tbm=isch&q=acacia+heterophylly&nfpr=1&sa=X&ved=0ahUKEwjnyejApfbVAhUXz2MKHWDLAdUQvgUIJSgB&biw=1366&bih=604&dpr=1
Confuses anyone without a Botany background!
Thanks,
@ Hoang Huu Nguyen
In Phyllodinous Acacia such as Acacia mangium, Acacia auriculiformis and Acacia koa, the petiole expands and forms a leaf like structure known as "phyllode", which carry out the functions of the leaf. The true compound leaves appear in young plants fall off as they start growing. Please see the below given link.
https://www.quora.com/What-is-phyllodes
Thanks!
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