Mona, you are correct!
The artist is Martin Johnson Heade and the painting is "Orchid and Hummingbird near a Mountain Waterfall" (1902). It can be seen at the Museo Thyssen-Bornemisza, Prado, Madrid, Spain.
I was just in Boston the other day and saw a few paintings by Martin Johnson Heade in the new Americas Wing of the Museum of Fine Arts.