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Plantkundig woordenboek voor Nederlandsch Indië : met korte aanwijzingen van het geneeskundig- en huishoudelijk gebruik der planten, en vermelding der verschillende inlandsche wetenschappelijke benamingen - Filet, G. J., 1825 -1891 (J.H. de Bussy, 1888)

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Popular gardening for town and country (Popular Gardening Pub. Co, 1888)

The Popular science monthly - Harry Houdini Collection (Library of Congress) (Popular Science Pub. Co., etc, 1913)

Practical plant propagation; an exposition of the art and science of increasing plants as practiced by the nurseryman, florist and gardener - Hottes, Alfred Carl, 1891 -1955 (A. T. De La Mare company, inc, 1922)

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Price list : fall and winter 1926-1927 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Royal Palm Nurseries, 1926)

Price list of fruit and ornamental trees, small fruits, evergreens, roses, etc., of the California Nursery Co - California Nursery Co. (The Nursery, 1881)

Price list of rare tropical trees and plants, ornamental stock and citrus trees - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Little River Nurseries, 1914)

Price list, season 1937-38 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Soule's Gladiolus Garden, 1937)

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The principles of fruit-growing - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Macmillan, 1898)

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The principles of plant-teratology - Worsdell, Wilson Crosfield (The Ray Society, 1915)

Principles of scientific botany, or, Botany as an inductive science - Lankester, E. Ray Sir, (Edwin Ray), 1847 -1929 (Longman, Brown, Green, and Longmans, 1849)

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pu yang zhi wu zhi - Zhang, Junpu, Wu Hongchen, Zhu Xuewen & Ma Yipin (zhong guo ke xue ji shu chu ban she, 1996)

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Publication. Field Museum of Natural History. Botanical series - Field Museum of Natural History. (Field Museum of Natural History, 1936)

Publication. Field Museum of Natural History. Botanical series - Field Museum of Natural History. (Field Museum of Natural History, 1938)

Publication. Field Museum of Natural History. Botanical series - Field Museum of Natural History. (Field Museum of Natural History, 1939)

Publication. Field Museum of Natural History. Botanical series - Field Museum of Natural History. (Field Museum of Natural History, 1937)

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Queensland Agricultural Journal - Queensland. Department of Agriculture; Stock. (Queensland Dept. of Primary Industries, 1928)

Queensland Agricultural Journal - Queensland. Department of Agriculture; Stock. (Queensland Dept. of Primary Industries, 1935)

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Rapid biological inventories - Field Museum of Natural History. Environmental; Conservation Programs. (Field Museum, 2002)

Rapid biological inventories - Field Museum of Natural History. Environmental; Conservation Programs. (Field Museum, 2003)

Rapid biological inventories - Field Museum of Natural History. Environmental; Conservation Programs. (Field Museum, 2004)

Rapid biological inventories - Field Museum of Natural History. Environmental; Conservation Programs. (Field Museum, 2006)

Rapid biological inventories - Field Museum of Natural History. Environmental; Conservation Programs. (Field Museum, 2007)

Rapid inventories, biological and social - Field Museum of Natural History. (Field Museum, 2008)

Rare foliage plants - 1951 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fantastic Gardens, 1951)

Rare plant list. No. 4 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fantastic Gardens, 1955)

Rare plant list : 1953 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fantastic Gardens, 1953)

Rare plant list : summer - 1952 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Fantastic Gardens, 1952)

Rare subtropicals : that will add interest and beauty to your garden - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Williams & Macpherson Subtropical Nurseries, 1937)

Realizing nature's potential : proceedings of the William L. Brown Symposium honoring Dr. Gordon Cragg - Miller, James Stuart, 1953 - (Missouri Botanical Garden, 2011)

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Reisen in Britisch-Guiana in den Jahren 1840-1844 : nebst einer Fauna und Flora Guiana's nach Vorlagen von Johannes Müller, Ehrenberg, Erichson, Klotzsch, Troschel, Cabanis und Andern - Ehrenberg, Christian Gottfried, 1795 -1876 (J. J. Weber, 1847)

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Répertoire des noms génériques mentionnés dans l'Index kewensis et ses quinze premiers suppléments = Guide to the generic names appearing in the Index Kewensis and its fifteen supplements = Repertorio de los nombres genericos enumerados en el Index Kewensis y sus quince suplementos = Repertorium der im Index Kewensis und seinen fuenfzehn ersten Supplementen erwaehnten Gattungsnamen - Rouleau, Ernest 1916 -1991 (Châtelain, 1981)

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Reptilien und Amphibienpflege - Krefft, Paul (Verlag von Quelle & Meyer, 1907)

Retail price list, fall, 1949 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Roy F. Wilcox & Co, 1949)

Retail price list, fall1941 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Roy F. Wilcox & Co, 1941)

Return / British Museum - British Museum (Natural History) (British Museum, 1890)

Return / British Museum - British Museum (Natural History) (British Museum, 1891)

Revisio generum plantarum vascularium omnium atque cellularium multarum secundum leges nomenclaturae internationales cum enumeratione plantarum exoticarum in itinere mundi collectarum, mit erläuterungen - Kuntze, Otto, 1843 -1907 (A. Felix [etc., etc.], 1891)

Revisio generum plantarum:vascularium omnium atque cellularium multarum secundum leges nomenclaturae internationales cum enumeratione plantarum exoticarum in itinere mundi collectarum ... - Kuntze, Otto, 1843 -1907 (A. Felix [etc.], 1891)

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Revue horticole (Librairie agricole de la maison rustique, 1854)

Revue horticole (Librairie agricole de la maison rustique, 1858)

Revue horticole (Librairie agricole de la maison rustique, 1864)

Revue horticole (Librairie agricole de la maison rustique, 1867)

Revue horticole (Librairie agricole de la maison rustique, 1869)

Revue horticole (Librairie agricole de la maison rustique, 1873)

Revue horticole (Librairie agricole de la maison rustique, 1876)

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

Revue horticole (Librairie agricole de la maison rustique, 1893)

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, 1898)

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Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 1976)

Richard Schomburgk's travels in British Guiana, 1840-1844 - Schomburgk, Richard, 1811 -1891 ("Daily Chronicle" Office, 1922)

Robert Craig Company, Norwood, Delaware County, Pa. 1856, 1956 : our 100th year of knowing and growing what the public prefers : February 1956 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Robert Craig Company, 1956)

Robert Craig Company, Norwood, Delaware County, Pa. 1856, 1954 : our 98th year of knowing and growing what the public prefers : February 1954 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Robert Craig Company, 1954)

Robert Craig Company, Norwood, Delaware County, Pa. 1856, 1955 : our 99th year of knowing and growing what the public prefers : February 1955 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Robert Craig Company, 1955)

Robert Craig Company, Norwood, Delaware County, Pa. : established June, 1856, the 99th year of continuous Craig ownership, management : Thanksgiving, 1954 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Robert Craig Company, 1954)

Robert Craig Company, Norwood, Delaware County, Pa. : September 1955 : our 100th year of continuous Craig ownership-management - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Robert Craig Company, 1955)

Robert Craig Company, Norwood, Delaware County, Pa. : September 1954 : the 99th year of continuous Craig ownership-management - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Robert Craig Company, 1954)

Robert Craig Company, Norwood, Delaware County, Penna. : established June, 1856, the 97th year of continuous Craig ownership, management : September, 1953 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Robert Craig Company, 1953)

Rodriguésia: Revista do Jardim Botânico do Rio de Janeiro (Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, 1937)

Rodriguésia: Revista do Jardim Botânico do Rio de Janeiro (Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, 1971)

Rodriguésia: Revista do Jardim Botânico do Rio de Janeiro (Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, 2005)