6 504768 Heliotropium macrodon (Fresen.) Gürke [125 918384 Schleidenia macrodon Fresen.]
C.F.P. von Martius, A.G. Eichler, I. Urban, Fl. Bras., vol. 8(1): fasicle 19, (Labiatae; Scrophularinae; Gesneraceae): t. 10 (1857)

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