Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1983)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1987)

Phytoneuron (Guy L. Nesom, 2012)

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)

Pinaceae : being a handbook of the firs and pines - Nelson, John. (Hatchard, 1866)

Pinaceae: being a handbook of the firs and pines - Nelson, John. (Hatchard and co, 1866)

Pinaceae, Rutaceae, Meliaceae, Anacardiaceae, Tamaricaceae, Cornaceae, Oleaceae, Bignoniaceae of Nevada - Little, Elbert L. (Elbert Luther), 1907 -2004 (Plant Industry Station, 1956)

Pinacographia : illustrations of more than 1,000 species of north-west-European Icheumonide, sensu Linnaeano = Afbeeldingen van meer dan 1,000 soorten noord-west-Europeesche sluipwespen (ichneumones sensu Linnaeano) - Snellen van Vollenhoven, S. C. (Samuel Constant), 1816 -1880 (Martinus Nijhoff, 1880)

Pinacographia. Illustrations of more than 1,000 species of north-west-European Ichneumonide, sensu Linnaeano. Afbeeldingen van meer dan 1,000 soorten noord-west-europeesche sluipwespen (ichneumones sensu Linnaeano) - Snellen van Vollenhoven, S. C. (Samuel Constant), 1816 -1880 (M. Nijhoff, 1880)

The Pine trees of the Rocky Mountain region (U.S. Dept. of Agriculture, 1917)

The pinetum: being a synopsis of all the coniferous plants at present known, with descriptins, history and synonyms, and a comprehensive systematic index - Gordon, George, 1806 -1879 (H. G. Bohn, 1875)

The pinetum: being a synopsis of all the coniferous plants at present known, with descriptions, history and synonyms, and a comprehensive systematic index - Gordon, George, 1806 -1879 (H.G. Bohn [etc.], 1880)

The pinetum Britannicum : a descriptive account of hardy coniferous trees cultivated in Great Britain - Ravenscroft, Edward, 1816 -1890 (W. Blackwood & Sons, 1884)

Pittonia :a series of papers relating to botany and botanists - Greene, Edward Lee, 1843 -1915 (Doxey & Co. [etc.], 1899)

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

Plant indicators: the relation of plant communities to process and practice - Clements, Frederic E. (Frederic Edward), 1874 -1945 (Carnegie Institution of Washington, 1920)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1934)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1951)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1956)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1966)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1967)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1968)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1969)

Plant lists : Colombia, Chile, Peru, and Brazil - Smith, Albert C. (Albert Charles), 1906 Apr 5 - (1922)

Plantae Bakerianae - Greene, Edward Lee, 1843 -1915 (s.n, 1901)

Plantæ Bakerianæ - Greene, Edward Lee, 1843 -1915 (s.n, 1901)

Plantae Brasiliae centralis a Glaziou lectae = Liste des plantes du Bre´sil central recueillies en 1861-1895 - Glaziou, A. F. M. (Auguste Franois Marie), 1828 -1906 (Au sige de la Socit, 1910)

Plantae junghuhnianae :enumeratio plantarum, quas, in insulis Java et Sumatra - Miquel, Friedrich Anton Wilhelm 1811 -1871 (H.R. de Breuk, 1853)

Plantae Utowanae. Plants collected in Bermuda, Porto Rico, St. Thomas, Culebras, Santo Domingo, Jamaica, Cuba, The Caymans, Cozumel, Yucatan and the Alacran shoals. Dec. 1898-Mar. 1899. The Antillean cruise of the yacht Utowana. Mr. Allison V. Armour, owner and master - Millspaugh, Charles Frederick, 1854 -1923 (1900)

Plants and bulbs : wholesale price list, fall 1934 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Good & Reese Co, 1934)

Plants and bulbs : wholesale price list, fall 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Good & Reese, Inc, 1935)

Plants and bulbs : wholesale price list, fall 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Good & Reese, Inc, 1936)

Plants and bulbs : wholesale price list, fall 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Good & Reese, Inc, 1937)

Plants and bulbs : wholesale price list, fall 1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Good & Reese, Inc, 1938)

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)

Pleistocene birds of the palearctic : a catalogue - Nuttall Ornithological Club. (Nuttall Ornithological Club, 1998)

The plums of New York - New York (State). Dept. of Agriculture. (J.B. Lyon Company, state printers, 1911)

The plums of New York ... - New York (State). Dept. of Agriculture. (J. B. Lyon company, state printers, 1911)

The plums of New York - New York (State). Dept. of Agriculture. (J.B. Lyon Co., state printers, 1911)

The plums of New York - Hedrick, U. P. (J. B. Lyon Co., State Printers, 1911)

The poisonous snakes of India : for the use of the officials and others residing in the Indian Empire - Ewart, Joseph, Sir, 1831 -1906 (J. & A. Churchill, 1878)

The poisonous snakes of India. For the use of the officials and others residing in the Indian Empire - Ewart, Joseph, Sir, 1831 -1906 (J. & A. Churchill, 1878)

The poisonous terrestrial snakes of our British Indian dominions, including Ceylon, and how to recognize them; with symptoms of snake poisoning and treatment - Wall, Frank, 1868 -1950 (Bombay Natural History Society, 1913)

A popular handbook of the birds of the United States and Canada - Nuttall, Thomas, 1786 -1859 (Little, Brown, 1905)

A popular handbook of the birds of the United States and Canada - Nuttall, Thomas, 1786 -1859 (Little, Brown, 1921)

A popular handbook of the ornithology of the United States and Canada, based on Nuttall's Manual - Nuttall, Thomas, 1786 -1859 (Little, Brown, and Company, 1891)

Postelsia : the year book of the Minnesota Seaside Station - Minnesota Seaside Station. (Pioneer Press, 1906)

Postilla - Peabody Museum of Natural History. (Peabody Museum of Natural History, 1952)

Postilla - Peabody Museum of Natural History. (Peabody Museum of Natural History, 1962)

Pozsonyi Orvos-Termeszettudomanyi Egyesulet Kozlemenyei - Verein für natur- und heilkunde, Pressburg (1884)

A practical flora for schools and colleges - Willis, Oliver R. (Oliver Rivington), 1815 -1902 (American Book Co, 1894)

Practical forestry. A treatise on the propagation, planting, and cultivation, with a description, and the botanical and popular names of all the indigenous trees of the United States - Fuller, Andrew S. (Andrew Samuel), 1828 -1896 (Orange Judd company, 1884)

Practical forestry. A treatise on the propagation, planting and cultivation, with a description, and the botanical and popular names of all the indigenous trees of the United States - Fuller, Andrew S. (Andrew Samuel), 1828 -1896 (Orange Judd Co, 1884)

A practical handbook of British birds - Witherby, H. F. (Harry Forbes), 1873 -1944 (Witherby, 1919)

A practical handbook of British birds - Witherby, H. F. (Harry Forbes), 1873 -1944 (Witherby, 1920)

A practical handbook of British birds - Witherby, H. F. (Harry Forbes), 1873 -1944 (Witherby, 1924)

Practical hints on planting ornamental trees, with particular reference to coniferae... - Noble, Charles, Nurseryman, (Bradbury and Evans, 1852)

A preliminary catalog of the birds of Missouri - Widmann, Otto (Academy of Science of St. Louis, 1907)

A preliminary catalog of the birds of Missouri - Widmann, Otto (Academy of Sciences of St. Louis?, 1907)

A preliminary classification of the Rocky Mountain shrubland communities of Alberta - Alberta. Alberta Environment. (Alberta Environment, 2000)

Preliminary fall seed list : September 1, 1948 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Moran, 1948)

Preliminary report upon invertebrate fossils collected by the expeditions of 1871, 1872, and 1873, with descriptions of new species - Geographical Surveys West of the 100th Meridian (U.S.) (Gov't print. off, 1874)

A preliminary review of the birds of Nebraska : with synopses - Wolcott, Robert Henry, 1868 -1934 (Klopp & Bartlett Co, 1904)

Price list - American Forestry Co. (American Forestry Co, 1914)

Price list - American Forestry Co. (American Forestry Co, 1915)

Price list - American Forestry Co. (American Forestry Co, 1916)

Price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wood-Howell Nurseries, 1934)

Price list 1918-1919 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Conyers B. Fleu, Jr, 1918)

Price list, 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hagenburger's Specimen Plant Gardens, 1933)

Price list : Kelsey-Highlands Nursery : August, September and autumn, 1927 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Harlan P. Kelsey, 1927)

Price list of graded nursery stock - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bloodgood Nurseries, 1919)

Price list of hollies from all over the world - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Brownell Farms, 1956)

Price list of hollies from all over the world - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Brownell Farms, 1955)

Price list of nursery stock of the American Nursery Company - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (American Nursery Company, 1921)

Price list of nursery stock of the American Nursery Company - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (American Nursery Company, 1920)

Price list of nursery stock of the F. & F. Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F. & F. Nurseries, 1920)

Price list of nursery stock of the F. & F. Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F. & F. Nurseries, 1924)

Price list of nursery stock of the F. & F. Nurseries - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (F. & F. Nurseries, 1921)

Price list of phylloxera-resisting American grapes - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1902)

Price list of specimen trees, shrubs, roses and fruit : fall 1910 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Andorra Nurseries, 1910)

Price list of specimen trees, shrubs, roses and fruit : spring 1911 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Andorra Nurseries, 1911)

Price list of tree, shrub, and fruit seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas J. Lane, 1924)

Price list - spring, 1955 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Hopkins Nursery, 1955)

Price list : tree and shrub seeds : wholesale price list, September 1, 1951 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Moran, 1951)

Primo resoconto dei risultati della inchiesta ornitologica in Italia ... - Giglioli, Enrico Hillyer, 1845 -1909 (Coi tipi dei successori Le Monnier, 1889)

Prince's select catalogue of fruit & ornamental trees, plants, &c., extracted from their general catalogues of which copies exist in almost every town of the union, and which can be referred to by those who desire more extensive assortments - Wm. R. Prince & Co. (Wm. R. Prince & Co, 1854)

Prince's select catalogue of fruit & ornamental trees, plants, &c., extracted from their general catalogues of which copies exist in almost every town of the union, and which can be referred to by those who desire more extensive assortments - Wm. R. Prince & Co. (Wm. R. Prince & Co, 1855)

Prince's Select Descriptive Catalogue of the Unrivaled Collection of Fruit & Ornamental Tree and Shrubs, Vines, Creepers, Paeonies, &c., Cultivated at the Linnaean Botanic Garden and Nurseries, Flushing, Near New York - Wm. R. Prince & Co. (Wm. R. Prince & Co, 1857)

Prince's select descriptive catalogue of the unrivaled collection of fruit & ornamental trees and shrubs, vines, creepers, p©onies, &c. : cultivated at the Linn©an Botanic Garden & Nurseries, Flushing, near New York - Wm. R. Prince & Co. (s.n, 1860)

Prince’s select descriptive catalogue of the unrivaled collection of fruit & ornamental trees and shrubs, vines, creepers, pæonies, &c. : cultivated at the Linnæan Botanic Garden & Nurseries, Flushing, near New York - Wm. R. Prince & Co. (Wm. R. Prince & Co, 1860)

The principal species of wood: their characteristic properties - Snow, Charles H. (Charles Henry), 1863 - (J. Wiley & sons, 1903)

Principles of animal ecology - Allee, W. C. (Warder Clyde), 1885 -1955 (Saunders Co, 1949)

Proceedings and transactions of the Natural History Society of Glasgow - Natural History Society of Glasgow. (The Society, 1883)

Proceedings and transactions of the Royal Society of Canada. Délibérations et mémoires de la Société royale du Canada - Royal Society of Canada. (Société royale du Canada, 1886)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1861)