The interaction presents between the orchid and the mango tree is an example of commensalism as one species is benefited and other remains unaffected. An orchid plant that is growing on the branch of a mango tree is considered as an epiphyte. So, Epiphytes are the plants which grows on other plants but do not derive nutrition from them. In the given case the orchid is considered as an epiphyte as it gets support and the mango tree remains unaffected.

figure showing epiphytic relationship between orchid and mango tree