Nomenclature of Bignoniaceae of the Southern United States

Although the wild Bignoniaceae of the South are few in number and taxonomically simple, there is no single publication in which all are listed with correct nomenclature. Such recent authoritative references as those of Bailey (1949), Rehder (1949), Fernald (1950), Gleason (1952), and Little (1953) disagree not only with earlier works of Schumann (in Engler & Prantl, 1895), Small (1903, 1913, 1933), and Standley (1926), but also with each other. One could hardly find a better illustration of the handicaps under which those interested in the Southern flora must work.