Platismatia regenerans is a species of corticolous (bark-dwelling), foliose lichen in the family Parmeliaceae. Found in Borneo, it was formally described as a new species in 1968 by William and Chicita Culberson. The type specimen was collected by Mason Hale from the Kinabalu National Park in Sabah, at an elevation of 2000m (7,000feet). The species epithet refers to the "regenerative lobulae" that occur on older parts of the thallus.