Mystery Plant

I have a mystery plant that came up at the foot of a bonsai I bought in April.
The tree is from Japan via Ohio. The mystery plant is quite small, leaves not
much more than an inch. At first I thought it might be a cyclamen, but there is
no tuber. The leaves grow directly from the ground in a cluster. They ae very
strongly heart shaped with a sharp point, matte texture. They are shallowly
toothed. The most distinctive thing is they are beautifully marbled with silver
along the veins. It produces small buds which are narrowly pointed. However, I
haven't seen any flowers. They seem to be cleistogamous, & produce those little
balls that are typical of cleistogamous violets. Does this sound like anyone
you know?
I looked at some pictures of silver leafed violets. The one I have looks
closest to V. walkeri, but the leaves are more sharply pointed & the silver
color is more pronounced.
Iris
Iris,
Central NY, Zone 5a, Sunset Zone 40
"If we see light at the end of the tunnel, It's the light of the oncoming
train."
Robert Lowell (1917-1977)