I read in an ecology text book ("Ecology: Concepts and Applications" (7th edition) by Manuel Molles) that trees in tropical forests can be sustained despite the poor soil is because they extract nutrients from epiphyte mats. Trees send roots from trunks and branches to get nutrients from epiphyte mats that are located high up in the canopy. I would like to visualize these roots. Are there any pictures available (conveniently in the Internet) showing these roots?
Or are these roots usually located beneath epiphyte mats (e.g., very short) and cannot be seen unless we remove epiphyte mats?