Clusia falcata (Clusiaceae), an endangered species with exceptionally narrow leaves endemic to Chiapas, Mexico

Summary Clusia falcata (Clusiaceae), a new species from Chiapas, Mexico, is described and illustrated. This taxon distinctive for its leaves, among the narrowest of all known species, having lanceolate to oblong laminas that are mostly 10 – 15 × 2 2.5 cm. The flowers have quadrangular perianth with succulent petals, non-resiniferous androecium gynoecium. Staminate androphore bearing 18 24 short stamens. Pistillate 4 pairs staminodia, each pair born on an androphore. endemic montane forests Northern Eastern highlands Chiapas in Mexico currently considered be endangered.