Pflanzenbiologische Untersuchungen : nebst algologischen Schluszbemerkungen - Hansgirg, Antonin, 1854 -1917 (Alfred Hölder, 1904)

Pflanzenmikrochemie : ein Hilfsbuch beim mikrochemischen Studium pflanzlicher Objekte - Tunmann, Otto, 1867 -1919 (Gebrüder Borntraeger, 1913)

Das Pflanzenreich :regni vegetablilis conspectus - Engler, Adolf, 1844 -1930 (W. Engelmann, 1913)

Das Pflanzenreich :regni vegetablilis conspectus - Engler, Adolf, 1844 -1930 (W. Engelmann, 1921)

Die Pflanzenwelt Norwegens : ein Beitrag zur Natur- und Culturgeschichte Nord-Europas - Schübeler, F. C. (Frederik Christian), 1815 -1892 (1873)

The Philosophical magazine and journal : comprehending various branches of science, the liberal and fine arts, agriculture, manufactures, and commerce (R. Taylor, 1823)

Philosophical transactions of the Royal Society of London - Royal Society (Great Britain) (Royal Society of London, 1883)

Photoperiodism and related phenomena in plants and animals; proceedings - Withrow, Robert B. 1904 -1958 (1959)

Phytogeographic survey of North America. A consideration of the phytogeography of the North American continent, including Mexico, Central America and the West Indies, together with the evolution of North American plant distribution - Harshberger, John W. (John William), 1869 -1929 (W. Engelmann, 1911)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1972)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1976)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1979)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1988)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1990)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1996)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1997)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1998)

The Phytologist: a botanical journal - Irvine, Alexander, 1793 -1873 (William Pamplin, 1855)

Pike's "can't-be-beat" guaranteed seeds, bulbs, plants, 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (S.W. Pike, Seedsman, Inc, 1936)

Pike's garden annual 1924 : seeds, bulbs, plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (S.W. Pike, 1924)

Pike's garden annual : plants, bulbs, seeds and nursery stock - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (S.W. Pike, 1929)

Pino's 1951, our 51st year : flower, vegetable and lawn seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Willis S. Pino, 1951)

Pino's flower, vegetable and lawn seeds : 1900, 1950 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pino's Seed Store, 1950)

Pino's flower, vegetable and lawn seeds, 1949 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Willis S. Pino, 1949)

Pino's garden book, 1952, our 52nd year : flower, vegetable and lawn seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Willis S. Pino, 1952)

Pino's garden book, 1953, our 53nd year : flower, vegetable and lawn seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Willis S. Pino, 1953)

The pipevine - California Native Plant Society. Mount Lassen Chapter. (Mount Lassen Chapter, California Native Plant Society, 2019)

Pittonia :a series of papers relating to botany and botanists - Greene, Edward Lee, 1843 -1915 (Doxey & Co. [etc.], 1887)

Pittonia :a series of papers relating to botany and botanists - Greene, Edward Lee, 1843 -1915 (Doxey & Co. [etc.], 1902)

The plain truth about seeds : Burpee's 1899 farm annual - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W. Atlee Burpee & Co, 1899)

Planning and adorning the farmstead and school grounds - Ohio. Dept. of public instruction. (The F. J. Heer printing co, 1913)

Plant & eat vegetables for health : 1936, forty-third annual catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Aggeler & Musser Seed Co, 1936)

Plant a garden for victory, health and economy : 1942, our 42nd year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Willis S. Pino, 1942)

Plant a vegetable garden for victory : Jackson's seed for every need - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (O.P. Jackson Seed Company, 1943)

Plant a victory garden with our hormone treated seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (St. Louis Seed Co, 1944)

Plant a victory garden with Tait's thorobred seeds : 74th annual catalog, 1943 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. Tait & Sons, 1943)

Plant Jackson's seed for every need - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (O.P. Jackson Seed Company, 1947)

Plant Jackson's seed for every need - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (O.P. Jackson Seed Company, 1946)

Plant Jackson's seed for every need - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (O.P. Jackson Seed Company, Inc, 1949)

Plant Jackson's seed for every need - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (O.P. Jackson Seed Company, 1948)

Plant Jackson's seed for every need : food for freedom - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (O.P. Jackson Seed Company, 1945)

Plant Jackson's seed for every need : spring 1950 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (O.P. Jackson Seed Company, Inc, 1950)

Plant life and evolution (H. Holt, 1911)

Plant life of Alabama : an account of the distribution, modes of association, and adaptations of the flora of Alabama, together with a systematic catalogue of the plants growing in the state - Mohr, Charles (Charles Theodore), 1824 -1901 (Brown Printing Co, 1901)

Plant life of Alabama, an account of the distribution, modes of association, and adaptations of the flora of Alabama, together with a systematic catalogue of the plants growing in the state - Mohr, Charles (Charles Theodore), 1824 -1901 (Brown printing co, 1901)

Plant life of Alabama. An account of the distribution, modes of association, and adaptations of the flora of Alabama, together with a systematic catalogue of the plants growing in the state. Prepared in cooperationwith the Geological Survey of Alabama - Mohr, Charles (Charles Theodore), 1824 -1901 (Govt. Print. Off, 1901)

Plant lists : Texas - Lay, Daniel W., (1930)

Plant morphology - Haupt, Arthur W. (Arthur Wing), 1894 - (McGraw-Hill, 1953)

Plant names - Lindsay, Thomas Somerville Reeves, 1854 - (Sheldon, 1923)

Plant names, scientific and popular, including in the case of each plant the correct botanical name in accordance with the reformed nomenclature, together with botanical and popular synonyms ... - Lyons, A. B. (Albert Brown), 1841 -1926 (Nelson, Baker & Co, 1900)

Plant quarantine import restrictions of Netherlands New Guinea - United States. Office of Experiment Stations. (U.S. Dept. of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine, 1953)

Plant sturdy seeds. 1919 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Weeber & Don, 1919)

Plant sturdy seeds : 1920 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Weeber & Don, 1920)

The Plant world - Plant World Association. (Plant World Association [etc.], 1909)

Plant your garden with Malmo quality fruit & nut trees, roses, flowering trees, evergreens, vines, perennials, seeds, bulbs, fertilizers, soils, garden supplies : victory Number 1945 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Malmo Nurseries and Seed Stores, 1945)

Plantae Lindheimerianae : an enumeration of F. Lindheimer's collection of Texan plants, with remarks and descriptions of new species, etc - Gray, Asa, 1810 -1888 (Printed by Freeman and Bolles, 1845)

Plantae Lindheimerianae : an enumeration of F. Lindheimer's collection of Texan plants, with remarks and descriptions of new species, etc - Gray, Asa, 1810 -1888 (Printed by Freeman and Bolles, 1907)

Plantarum vascularium genera :secundum ordines naturales digesta eorumque differentiae et affinitates tabulis diagnostacis expositae - Weidmann. (Libraria Weidmannia, 1836)

Plantas Hartwegianas :imprimis mexicanas adjectis nonnullis Grahamianis enumerat novasque - Bentham, George, 1800 -1884 ([G. Pamplin,], 1839)

The planting guide - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Malmo & Co, 1931)

Planting guide and pure seed book : 1917 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Galloway Bros. & Co, 1917)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1962)

Plants and X rays - Breslavet︠s︡, L. P. (Lidii︠a︡ Petrovna), 1882 -1969 (American Institute of Biological Sciences, 1960)

Plants list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Union Nurseries, 1932)

Plants of Mississippi : a list of flowering plants and ferns - Lowe, E. N. (Ephraim Noble), 1864 -1933 (Mississippi State Geological Survey, 1921)

Plants of the Seven Devils Mountains of Idaho : an annotated checklist - Intermountain Forest; Range Experiment Station (Ogden, Utah) (U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1987)

Plants of west-central Montana : identification and ecology : annotated checklist - Intermountain Research Station (Ogden, Utah) (U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1986)

Plants, seeds & bulbs : season 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pudor's, Inc, 1930)

Platt's 1942 seeds for your garden - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank S. Platt Co, 1942)

Platt's 1943 : vegetables for health and victory - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank S. Platt Co, 1943)

Platt's 1944 : enjoy your own garden fresh vegetables - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank S. Platt Co, 1944)

Platt's 1946 : zinnias for your home and garden - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank S. Platt Co, 1946)

Platt's 1947 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank S. Platt Co, 1947)

Platt's 1949 : beauty and abundance from your own garden - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank S. Platt Co, 1949)

Platt's 1950 : beauty and abundance from your own garden - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank S. Platt Co, 1950)

Platt's catalogue of farm, garden and flower seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank S. Platt Co, 1914)

Platt's general catalogue for 1912 : farm, garden and flower seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank S. Platt Co, 1912)

Platt's seed annual. 1916 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank S. Platt Co, 1916)

Platt's seed annual : 1915 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank S. Platt Co, 1915)

Platt's seed annual : 1921 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank S. Platt Co, 1921)

Platt's seed annual : 1923 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank S. Platt Co, 1923)

Platt's seed annual : 1924 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. ([Frank S. Platt Co.], 1924)

Platt's seed annual : 1925 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. ([Frank S. Platt Co.], 1925)

Platt's seed annual : 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. ([Frank S. Platt Co.], 1926)

Platt's seed book for 1911 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank S. Platt Co, 1911)

Platt's seeds 1877-1952, our 75th anniversary - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank S. Platt Co., Seedsmen, 1952)

Platt's seeds, 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank S. Platt Co, 1930)

Platt's seeds, 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank S. Platt Co, 1933)

Platt's seeds, 1934 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank S. Platt Co, 1934)

Platt's seeds, 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank S. Platt Co, 1935)

Platt's seeds, 1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank S. Platt Co, 1938)

Platt's seeds, 1939 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank S. Platt Co, 1939)

Platt's seeds, 1940 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank S. Platt Co, 1940)

Platt's seeds 1951 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank S. Platt Co, 1951)

Platt's seeds 1953 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank S. Platt Co., Seedsmen, 1953)

Platt's seeds 1954 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank S. Platt Co., Seedsmen, 1954)

Platt's seeds 1955 : a complete line of seeds and garden supplies - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank S. Platt Company, 1955)

Platt's seeds for 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank S. Platt Co, 1931)

Platt's seeds for 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank S. Platt Co, 1932)

Platt's seeds for your garden, 1941 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank S. Platt Co, 1941)

Platt's seeds for your garden : spring 1945 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Frank S. Platt Co, 1945)

The Plough, the loom, and the anvil (J.S. Skinner & Son], 1848)

The Plough, the loom and the anvil - Skinner, John S. (John Stuart), 1788 -1851 (J.S. Skinner, 1848)