Ceratocentron
Ceratocentron is a critically endangered genus of plants in family Orchidaceae. It contains only one known species, Ceratocentron fesselii, found at high altitudes from Nueva Vizcaya and Nueva Ecija to the Cordillera Mountain ranges on Luzon island in the Philippines. The holotype was discovered in northern Nueva Ecija. The species is rare in the wild, and remained unknown to science until 1989.
It is critically endangered due to habitat degradation and collecting. The IUCN says "The species is over-collected in the wild, often sold in orchid shows and markets, and in demand in the international trade." It is the most endangered orchid species in Southeast Asia.
