Castanea question

[L.P.]

Hello,

Can anyone help? I have found some beautiful chestnut leaves to 
put on my website about trees, but unfortunately I don't know 
which species of castanea they belong to. They look a lot like
the leaves of a castanea sativa, except for the white spots along
the edges. There's a picture of the leaves on:
http://www.ping.be/quercus/sweetch.htm




Thanks in advance,
Luc.

PS: I'd also appreciate any help with the different Acer leaves on:
http://www.ping.be/quercus/maple.htm