Griffin, Ga. : F.M. Ellis. "Descriptive catalogue for the nursery trade of forest and ornamental tree seed seeds of shrubs, conifers, palms and evergreens rare seed unusual, exotic and newly introduced trees, shrubs and evergreens from all parts of the Earth : season of 1928-29." National Agricultural Library (U.S.). 1928, http://archive.org/details/descriptivecatal1928fmel.

Griffin, Ga. : F.M. Ellis (1928). Descriptive catalogue for the nursery trade of forest and ornamental tree seed seeds of shrubs, conifers, palms and evergreens rare seed unusual, exotic and newly introduced trees, shrubs and evergreens from all parts of the Earth : season of 1928-29. Retrieved from http://archive.org/details/descriptivecatal1928fmel

Griffin, Ga. : F.M. Ellis. "Descriptive catalogue for the nursery trade of forest and ornamental tree seed seeds of shrubs, conifers, palms and evergreens rare seed unusual, exotic and newly introduced trees, shrubs and evergreens from all parts of the Earth : season of 1928-29." 1928. August 10, 2025. http://archive.org/details/descriptivecatal1928fmel.