Golden lion tamarins are characterized by using manipulative foraging under tree barks and epiphytic bromeliads. It is home to exceptional epiphytic mosses, liverworts and lichens. Many epiphytic bromeliads with the tank habit also speciated here. The forests are multi-storeyed and rich in epiphytic flora and woody lianas. The South Andaman forests have a profuse growth of epiphytic vegetation, mostly ferns and orchids. These lower areas lack lianas, but have abundant epiphytic species such as "Tillandsia". The South Andaman forests have a profuse growth of epiphytic vegetation, mostly ferns, and orchids. Plants are often rhizomatous, and can be terrestrial or epiphytic. Often the green algae have a dense covering of epiphytic diatoms. Bulbophyllum is a genus of mostly epiphytic and lithophytic orchids in the family Orchidaceae. The pseudobulb is a storage organ found in many epiphytic and terrestrial sympodial orchids. "Dendrobium" species are mostly epiphytic, or lithophytic although a few species are terrestrial. Invertebrates and epiphytic algae provide much of the food for other organisms. Their outer layer is an example of the velamen typical of most epiphytic orchids. Some primary epiphytic species have a symbiotic relationship with ants.