Abstract
The genus Monstera (Araceae) has a history of problematic taxonomy due to the large number of existing names, their incorrect application, and prevalence of incomplete herbarium specimens. Recent field exploration and study of herbarium collections has led to the discovery of several new species of Monstera, especially in Central America. Here we describe Monstera anomala and M. integrifolia, two new species from Panama and Costa Rica with entire, non-fenestrate mature leaves.