A number of observations of the morphology of crystalline polymers are describe d that, we believe, are not adequately explained in terms of current theory and modeling. These include evidence for primary nuclei of excessive thickness, linear variations in planar growth face directions with crystallization temperature, fold planes parallel (only) to the long axis of solution grown crystals, lamellar doubling in melt crystallized lamellae, discrepancies between small angle X-ray scattering (SAXS) and electron microscopy measurements of lamellar thickness and in the SAXS periodicities, and the effects of a molten free surface on the resulting morphology following crystallization.