bats eating guided by hemispheric leaves

Yes, in Cuba, there is a plant that has a hemispheric hollow leaf placed above its blooms.  That shape of leaf serve to reflect bat signals from bats back to the ears of the bats, attracting the bats.  The bats can get to the plant in the dark, and pollinate the blooms of the plant while at the plant.  I'm not sure what the bats eat, but I think it could be nectar of the blooms.

"That shape of leaf serve to reflect bat signals from bats back to the ears of the bats, attracting the bats."

i dun get it

>>2
Well you see, the bats emit bat signals from their bat signal generator, and that bat signal reflects off of objects back to the bat, specifically the bat ears hear the echoes of the bat signals that the bat emitted.  The leaf is shaped in a way that optimally reflects the bat signals, so the bat is very easily finding the plant that has that leaf.