Icacinicarya davisii was a small, ovate icacinaceous fruit with a conspicuous network of fibres sunk into the endocarp surface. It was originally described in the living genus Iodes, but modern micro-CT changed that interpretation: the principal marginal vascular bundle travels outside the endocarp wall for most of its course instead of remaining embedded within it, as expected in Iodes.

Near the apex, small canals or pores flank the stylar region and connect with the vascular system. These are real internal structures rather than surface damage, but they do not outweigh the vascular evidence against an Iodes placement. The 2016 revision therefore transferred the species to the broader form-genus Icacinicarya. Its fruit is directly known; its whole-plant growth form is not, so the lianescent habit of living Iodes should not be projected onto this fossil after the generic reassignment.