Porpax Lindi. is a small genus found only in the mainland of Asia. It differs from its close relative Eria Lindl. in having the sepals joined into a tube and having a very short pseudobulb which is wider than long. While on an exploration to Silent Valley a curious population of Porpax was located. Comparing with other known species of the genus, the plants were described here as a new species. The plants were growing on lichen covered tree trunks in moist shady places.