12 694457 Nematanthus crassifolius (Schott) Wiehler [80 694452 Nematanthus chloronema Mart.]
C.F.P. von Martius, A.G. Eichler, I. Urban, Fl. Bras., vol. 8(1): fasicle 36, (Labiatae; Scrophularinae; Gesneraceae): t. 59 (1864)