Imho these seeds look alike: http://de.wikipedia.org/w/index.php?tit ... 0316135853
They are the seed of nelumbo nucifera, Indian Lotusplant.
The beads just seem to be polished and got rid of its skin?
Once i heard somebody call them "Bodhiseeds". This must be a mistake, because the seeds from the Bodhitree are very tiny.
This mala for example is called a "Bodhi seed mala". http://geschenke-spirit.de/Testshop/Med ... it-Zaehler
But the actual seed of Bodhi looks diffrent.
So i don't know how this mix-up of names could happen.
Well, maybe the beads could be the dried Bodhifruit? The seed is tiny within these small green balls.