Two new endemic species from the Atlantic Forest, Philodendron baumgratzii and Philodendron waenglerae, are described herein. Both species belong to the subgenus Philodendron, assigned to sections Schizophyllum and Macrobelium, respectively. Detailed taxonomic descriptions, nomenclatural notes, and geographic distribution data are provided.
Mattos et al. (Fri,) studied this question.