Suggested phylogeny of prunus serotina and other wide-ranging phylads in North America Rogers McVaugh OriginalPaper Pages: 317 - 346
Plant explorations of G. Wilson-Browne, S. J., in British Guiana. I. Kanuku mountains Richard S. Cowan and Collaborators OriginalPaper Pages: 389 - 414
A revision of the genus Bromus, section Bromposis of North America H. Keith Wagnon OriginalPaper Pages: 415 - 480