BioStor
 | The genera of Berberidaceae, Lardizabalaceae, and Menispermaceae in the southeastern United States W R Ernst (1964) Journal of the Arnold Arboretum 45: 1-35 |
 | Stem structure of the New World Menispermaceae W A Mennega (1982) Journal of the Arnold Arboretum 63: 145-172 |