Proceedings of the Horticultural Society of London - Royal Horticultural Society (Great Britain) (Bradbury and Evans, 1841)

Proceedings of the Horticultural Society of London - Royal Horticultural Society (Great Britain) (Bradbury and Evans, 1843)

Proceedings of the Horticultural Society of London - Royal Horticultural Society (Great Britain) (Bradbury and Evans, 1842)

Proceedings of the International Congress of Genetics (1906)

Proceedings of the Royal Horticultural Society London (Royal Horticultural Society, 1866)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1961)

Progressus rei botanicae = Fortschritte der Botanik = Progrès de la botanique = Progress of botany - Association internationale des botanistes. (G. Fischer, 1907)

Quality orchids at present day prices - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Armacost & Royston, Inc, 1934)

Quarterly trade catalogue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pitcher & Manda, 1894)

Queensland Agricultural Journal - Queensland. Department of Agriculture; Stock. (Queensland Dept. of Primary Industries, 1907)

Queensland Agricultural Journal - Queensland. Department of Agriculture; Stock. (Queensland Dept. of Primary Industries, 1909)

Recueil de l'Institut botanique (Université de Bruxelles) - Institut botanique Léo Errera. (Henri Lamertin, 1902)

Reichenbachia :Orchids illustrated and described - Sander, F. 1847 -1920 (F. Sander & Co., Orchid growers & importers;H. Sotheran & Co.;I. Forstermann, [etc., etc.], 1888)

Reichenbachia :Orchids illustrated and described - Sander, F. 1847 -1920 (F. Sander & Co., Orchid growers & importers;H. Sotheran & Co.;I. Forstermann, [etc., etc.], 1890)

Reichenbachia :orchids illustrated and described - Sander, F. 1847 -1920 (F. Sander, 1892)

Rendiconti - Accademia nazionale dei Lincei. Classe di scienze fisiche, matematiche e naturali. (1911)

Report of the Third International Conference 1906 on Genetics : hybridisation (the cross-breeding of genera or species), the cross-breeding of varieties, and general plant-breeding - Royal Horticultural Society (Great Britain) (Royal Horticultural Society, 1907)

The Review of applied entomology Series A Agricultural - C.A.B. International. Bureau of Crop Protection (Commonwealth Agricultural Bureaux, etc, 1917)

Revue horticole (Librairie agricole de la maison rustique, 1884)

Revue horticole (Librairie agricole de la maison rustique, 1885)

Revue horticole (Librairie agricole de la maison rustique, 1886)

Revue horticole (Librairie agricole de la maison rustique, 1887)

Revue horticole (Librairie agricole de la maison rustique, 1888)

Revue horticole (Librairie agricole de la maison rustique, 1889)

Revue horticole (Librairie agricole de la maison rustique, 1890)

Revue horticole (Librairie agricole de la maison rustique, 1891)

Revue horticole (Librairie agricole de la maison rustique, 1894)

Revue horticole (Librairie agricole de la maison rustique, 1829)

Revue horticole (Librairie agricole de la maison rustique, 1896)

Revue horticole (Librairie agricole de la maison rustique, 1897)

Revue horticole (Librairie agricole de la maison rustique, 1899)

Revue horticole (Librairie agricole de la maison rustique, 1902)

Revue horticole (Librairie agricole de la maison rustique, 1903)

Revue horticole (Librairie agricole de la maison rustique, 1904)

Revue horticole (Librairie agricole de la maison rustique, 1905)

Revue horticole (Librairie agricole de la maison rustique, 1906)

Revue horticole (Librairie agricole de la maison rustique, 1907)

Revue horticole (Librairie agricole de la maison rustique, 1908)

Revue horticole (Librairie agricole de la maison rustique, 1916)

Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1972)

Richardiana (Tropicalia, 2002)

Roehrs Nursery : at the sign of the tree : [catalog] - Roehrs, Julius, Company. (Julius Roehrs Co, 1916)

Royal gardens - Ward, Cyril, 1863 -1935 (Longmans, Green, 1912)

Royal palaces & gardens - Calthrop, Dion Clayton, 1878 -1937 (A. & C. Black, 1916)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1872)

Sanders' orchid guide, rev. (1927) ed. containing all the best known species, varieties, and natural hybrids of orchids in cultivation. Their native countries, descriptions, seasons of flowering, best methods of cultivation, temperatures, &c. ... - Sanders, St. Albans. (Sanders, 1927)

Seeds, plants & bulbs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pitcher & Manda, 1897)

La Semaine horticole ([s.n.], 1897)

La Semaine horticole ([s.n.], 1898)

La Semaine horticole et guide des cultures coloniales ([s.n.], 1900)

La Semaine horticole et revue des cultures coloniales ([s.n.], 1899)

Service and regulatory announcements - United States. Office of Experiment Stations. (U.S. G.P.O, 1937)

Service and regulatory announcements - United States. Office of Experiment Stations. (U.S. G.P.O, 1938)

Service and regulatory announcements - United States. Office of Experiment Stations. (U.S. G.P.O, 1939)

Service and regulatory announcements - United States. Office of Experiment Stations. (U.S. G.P.O, 1940)

[Siebrecht & Wadley materials] - Siebrecht & Wadley. (1886)

Special list. established orchids No. 69 January 1917 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Lager & Hurrell, 1917)

Special list no. 62. orchids established No. 62 August, 1915 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Lager & Hurrell, 1915)

Special list no. 65. established orchids No. 65 March 1916 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Lager & Hurrell, 1916)

Special list of established orchids no. 63. specially selected, for cut flower culture No. 63 August, 1915 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Lager & Hurrell, 1915)

Special offer : collections of orchids at reduced prices - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (United States Nurseries, 1890)

Special offer of imported orchids - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (United States Nurseries, 1892)

Special wholesale catalogue of decorative plants for fall and winter use : also hardy perennials for September and October planting - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (United States Nurseries, 1893)

The standard cyclopedia of horticulture; a discussion, for the amateur, and the professional and commercial grower, of the kinds, characteristics and methods of cultivation of the species of plants grown in the regions of the United States and Canada for ornament, for fancy, for fruit and for vegetables; with keys to the natural families and genera, descriptions of the horticultural capabilities of the states and provinces and dependent islands, and sketches of eminent horticulturists - Bailey, L. H. (Liberty Hyde), 1858 -1954 (The Macmillan Co.; [etc., etc.], 1916)

The standard cyclopedia of horticulture; a discussion, for the amateur, and the professional and commercial grower, of the kinds, characteristics and methods of cultivation of the species of plants grown in the regions of the United States and Canada for ornament, for fancy, for fruit and for vegetables; with keys to the natural families and genera, descriptions of the horticultural capabilities of the states and provinces and dependent islands, and sketches of eminent horticulturists - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Macmillan, 1919)

Start now to grow your own orchids : you need only a sunny window and 20 minutes a week - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fennell Orchid Company, 1953)

Stein's Orchideenbuch. Beschreibung, Abbildung und Kulturanweisung der empfehlenswertesten Arten. Mit 184 in den Text gedruckten Abbildungen - Stein, Berthold. (P. Parey, 1892)

Streifzüge an der Riviera - Strasburger, Eduard, 1844 -1912 (G. Fischer, 1913)

Sunset Seed and Plant Co. : 1896 - Sunset Seed; Plant Co. (Sunset Seed and Plant Co, 1896)

[Sunset Seed and Plant Co. materials] - Sunset Seed; Plant Co. (1893)

Svensk botanisk tidskrift - Svenska botaniska föreningen. (Svenska botaniska föreningen [etc.], 1914)

Synopsis der mitteleuropaïschen flora - Graebner, Paul, 1871 -1933 (W. Engelmann, 1896)

A text-book of mycology and plant pathology - Harshberger, John W. (John William), 1869 -1929 (P. Blakiston's Son & Co, 1917)

Teysmannia (G. Kolff, 1895)

Teysmannia (G. Kolff, 1898)

Teysmannia (G. Kolff, 1904)

Teysmannia (G. Kolff, 1905)

Teysmannia (G. Kolff, 1907)

The journal of horticulture (1902)

The journal of horticulture (1904)

The journal of horticulture (1903)

The journal of horticulture (1900)

The journal of horticulture (1895)

The journal of horticulture (1901)

The journal of horticulture (1898)

The journal of horticulture (1896)

The journal of horticulture (1899)

The journal of horticulture (1897)