Platycerium madagascaeriense, one of the most bizarre endemic plants of Madagascar. Like other staghorn ferns, this species is strictly an epiphyte, growing among the canopy branches of tall trees. It is becoming increasingly rare and difficult to find in the wild because of widespread deforestation in the wet submontane forests of the east coast. The unusual ruffled texture of the shield fronds is probably an adaptation to allow passageways for ants to live underneath – a relationship that is mutually beneficial for both plant and insect. Ranomafana National Park, Madagascar.