5-7 cm x 1. 25-2. 5 cm, exocarp more or less separating by 4-valves; nut ovoid to ellipsoid, cylindrical or faintly 4-angled; seed solitary, deeply divided longitudinally, somewhat grooved and convoluted, not closely adherent to the shell. FigCarya illinoinensis. Cultivation Orchards largely planted out with grafted and budded trees in the southeast USA, and with seedling trees in the southwest, although there is now a trend towards selected cultivars.