Deciduous woody climbers. Twigs terete, slender, hairy or glabrescent; pith large, white, continuous. Leaf-scars alternate, elliptical; bundle-traces 3 or multiplied; stipule-scars none. Drupe with deep cup-like stone.

1. C. lyoni (Pursh) Gray. Cupseed. High climbing; drupe black, 2.5 cm. long. Rich soil, Florida to Louisiana, north to Kentucky, Missouri, and Kansas.