I have several pieces of jatoba, and the original poster sample looks the same grain and colour as my jatoba.Check out Granadillo on the same site provided by Dave Payne.
Although the site seems to show a quartersawn sample with some of it's (beautiful and quite usable sapwood showing) the end grain pics especially look identical.
Many exotic tropical woods where I live, I love working this wood.
Flooring could have some stains added to it, but the OP's sample looks like the Brazilian Cherry sold around here. If you searech "Brazilian Cherry Flooring", you see a variety of differences in the coloring, but to me the grain looks the same.Not Brazilian cherry.