I was thinking about this last night and remembered that somewhere in the past there had been a discussion on the old Aroid-L forum about this. The plant that you are talking about
@Adriennevs is Philodendron Burle marxii. In the 1970's it was an extremely popular Philo, one of the best selling houseplants. Then it sort of fell by the wayside. The P. burly marx 'Fantasy' is actually STILL after all this time an undescribed species, because the ONLY place it has ever been found was its original discovery in the garden of Roberto Burle Marx in Brazil. No one knew exactly where he got it.
It has never been collected from the wild, and apparently, no one who has grown it has ever flowered it. It was postulated by some that this actually may not be the adult form, but instead, that this is a juvenile form, and that either the color, patterning or possibly even the leaf shape might be significantly different enough from this well-known form that when it is being seen, it is not being recognized.
Some people claim to have been growing it since the 1960's though, so it would seem that if it was going to undergo some significant morphological change, they would have noticed by now.
The usage of the name 'Fantasy' in the quotes like that usually designates a cultivar, but I think that in this case, its are like Anthurium Marie. It is just an unofficial name given to this plant.
But some places like Steve's Leaves erroneously sell it as a hybrid. Its not, its an undescribed species
