5 949916 Sinningia douglasii (Lindl.) Chautems [116 464076 Gesneria douglasii Lindl.]
C.F.P. von Martius, A.G. Eichler, I. Urban, Fl. Bras., vol. 8(1): fasicle 36, (Labiatae; Scrophularinae; Gesneraceae): p. 361, t. 59, fig. 5 (1864)