A New Species of Mortoniodendron (Malvaceae sens. lat.) from Chiapas, Mexico

摘要

The new species Mortoniodendron ocotense is described from northwestern Chiapas, Mexico, where it is a locally abundant tree on karst substrates in seasonal evergreen rain forest. It falls within a group with five previously described species, of which the most closely related is M. uxpanapense. A simplified key to the six species is presented.