Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches, and a synopsis of the vegetable kingdom - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Doubleday, Page & Company, 1906)

Gartenflora - Deutsche Gartenbau-Gesellschaft. (F. Enke, 1870)

Gartenflora - Deutsche Gartenbau-Gesellschaft. (F. Enke, 1870)

Gartenflora - Deutsche Gartenbau-Gesellschaft. (F. Enke, 1870)

Gartenflora - Deutsche Gartenbau-Gesellschaft. (F. Enke, 1871)

Gartenflora - Deutsche Gartenbau-Gesellschaft. (F. Enke, 1879)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 2002)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 2002)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 2002)

Trudy Imperatorskago S.-Peterburgskago botanicheskago sada.Acta Horti Petropolitani - Imperatorskii Sankt-Peterburgskii botanicheskii sad. (Imperatorskiǐ S.-Peterburgskiǐ botanicheskiǐ sad, 1892)