Otoba vespertilio (Myristicaceae), una especie nueva de Mesoamérica

Otoba vespertilio , a new endemic tree species from the Caribbean slope of Costa Rica and Panama, is described and illustrated. This species is similar to O. cyclobasis , but differs in having leaf blades with 6–8 secondary veins per side (vs. 14–17) and staminate flowers with the pedicel 2–3.6 mm long (vs. 4–5 mm) and without an extrastaminal disc surrounding the base of the staminal column (vs. extrastaminal disc present). Data on its distribution and habitat, phenology, and taxonomy are included, as are photographs of the living plant and a key to identify the four species of the genus in Mesoamerica.