No, these two species are not synonomous! I have seen this plant, or two plants that to my eye look identical, labeled with either of these two names.  Aroids are not a group of plants I know a whole lot about on the level of taxonomy, so I have left both as tentative ID’s and am awaiting word from a few others with more experience. Originally imported from Borneo. In any case, this is a species that is nearly iridescent in lower light, with leaves that flatten themselves across whatever growing medium they are on- a shingler even on a horizontal surface! pretty cool.

Available plants are well rooted and growing in 2″ pots.  The last image is representative of the plants available.  They will be shipped potted.