Barry Hammel 16781 Det. by: M. Grayum, 1988 Phenology: ST 1 May 1988 08:42N 83:33W 250 m PUNTARENAS, OSA R.F. Golfo Dulce Península de Osa. Vine; leaves gray-green below. Sterile.
Michael Grayum 10657 Det. by: M. Grayum, XII 1993 Phenology: ST 10 December 1993 08:49N 83:11W 950-1150 m PUNTARENAS, OSA Fila Costeña. Young plant twining among dead branches and new growth in light gap in primary forest. Stems prominently glaucous (the bloom rubbing off). Lvs. peltate, glaucous-looking below (the bloom not rubbing off). Sterile collection.