for Lyman B. Smith and Edward S. Ayensu, A revision of American Velloziaceae. (Smithsonian contributions to botany, no. 30). Washington, Smithsonian Institution Press, 1976. Fig. 10 (p. 61).
White, James J. and Donald E. Wendel. 6th International Exhibition of Botanical Art & Illustration. Pittsburgh, Hunt Institute for Botanical Documentation, p. 120.
Drawn for publication in John Scott & Co. nursery catalogue, ca. 1957-1958. Note on accompanying card: This drawing first appeared in the 1964-65 catalogue and has been used ever since.
White, James J., A. Farole and S. Tomasic. 1995. 8th International Exhibition of Botanical Art & Illustration. Pittsburgh, Hunt Institute for Botanical Documentation, p. 93.