No, it's not in Brazil or Borneo. It's actually in the good old USA, literally and figuratively clinging to a steep slope in a drainage called Mahanaloa Gulch on the Hawaiian Island of Kauai. We need to stop twiddling our thumbs and SAVE THIS FOREST NOW.
I first visited this mystical forest shortly after I began a postdoctoral fellowship in restoration ecology at the National Tropical Botanical Garden in 1996. To my novice eyes, this gulch contained a beautiful but bewildering quilt of plants.