Type : Suriname, monts Nassau, Plateau C, Ligne B 51 entre les pits 8 & 9, forêt sur bauxite, 400-550 m, 12/03/1955, fleurs. Small tree. flowers with red tube. B. Maguire 40799 (HT:
NY00131955).
Suriname, monts Nassau, Plateau A, 500 m along line 12 south, infrequent in forest on ferro-bauxite, 540 m, 01/01/1955, fleurs. Shrub 2 m tall. Corolla tube pink, limb yellow. Leaves pale below. R.S. Cowan & J.C. Lindeman 39057 (PT: NY,
U.1571669,
V0290868F).