Thank you, Ray. I’ve looked at Van Houti’s picture in Dr. Frank Brown’s book. It's much more likely it is.
Leaves are not large, and yellow form has brownish hint on leaves’ underside.
Sergey - both forms look exceptional. These plants are planted outside so I assume you found these during one of your croton ventures. Did some cuttings make it back to your croton bunker?
The beautiful yellow version is especially unique. Thanks for sharing!