An outline of plant geography (The Macmillan company, 1926)

Overzicht der schadelijke en nuttige insecten van Java - Koningsberger, J. C. (Jacob Christiaan), 1867 -1951 (G. Kolff & co, 1908)

Oxford gardens, based upon Daubeny's Popular guide to the physick garden of Oxford: with notes on the gardens of the colleges and on the University park - Gunther, R. T. (Robert Theodore), 1869 -1940 (Parker & son; [etc., etc.], 1912)

Pacific science - University of Hawaii. (University Press of Hawaii, 1947)

Pacific science - University of Hawaii. (University Press of Hawaii, 1951)

Pacific science - University of Hawaii. (University Press of Hawaii, 1953)

Pacific science - University of Hawaii. (University Press of Hawaii, 1954)

Pacific science - University of Hawaii. (University Press of Hawaii, 1957)

Pacific science - University of Hawaii. (University Press of Hawaii, 1959)

Pacific science - University of Hawaii. (University Press of Hawaii, 1960)

Pacific science - University of Hawaii. (University Press of Hawaii, 1961)

Pacific science - University of Hawaii. (University Press of Hawaii, 1967)

Pacific science - University of Hawaii. (University Press of Hawaii, 1968)

Palaeontographica (Theodor Fischer, 1864)

Palm and conifer seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.L. Schiller, 1897)

The palm tree - Moody, Sophy. (T. Nelson and Sons, Paternoster Row; Edinburgh, and New York, 1864)

Palm trees in the United States - Bomhard, Miriam L. (Miriam Lucille), 1898 -1952 (U.S. Dept. of Agriculture, Forest Service, 1963)

The Palm tribes and their varieties (Religious Tract Society, 1852)

Palmae Hasslerianae novae; ou, Relação des palmeiras encontradas no Paraquay pelo Dr. Emilio Hassler de 1898-1899 - Rodrigues, J. Barbosa (João Barbosa), 1842 -1909. (Typ. Leuzinger, 1900)

Palmae mattogrossenses novae vel minus cognitae quas collegit descripsit et iconibus - Rodrigues, J. Barbosa (João Barbosa), 1842 -1909. (Typographia Leuzinger, 1898)

Palmae novae paraguayenses quas descripsit et iconibus illustravit J. Barbosa Rodrigues - Rodrigues, J. Barbosa (João Barbosa), 1842 -1909. (Leuzinger, 1899)

Les palmiers; histoire iconographique, géographie–paléontologie–botanique–description–culture–emploi, etc., avec index général des noms et synonymes des espèces connues - Kerchove de Denterghem, Oswald, comte de, 1844 -1906 (J. Rothschild, 1878)

Les palmiers; observations sur la monographie de cette famille dans la flora brasiliensis - Rodrigues, J. Barbosa (João Barbosa), 1842 -1909. (Messager du Brésil, 1882)

Palms for California - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Tetley Nurseries, 1957)

Palms for California - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Tetley Nurseries, 1958)

The palms of British India and Ceylon - Blatter, Ethelbert, 1877 -1934 (H. Milford, 1926)

Palms specimen trees : wholesale growers : 1957 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Tetley Nurseries, 1957)

[Pamphlets on agriculture in Guam] (s.n, 1905)

Pamphlets on forestry in California (1900)

Pamphlets on silviculture (1899)

Panamá : puente biológico : las Charlas Smithsonian del Mes, 1996-1999 - Heckadon Moreno, Stanley. (Instituto Smithsonian de Investigaciones Tropicales, 2001)

Papéis avulsos do Departamento de Zoologia - São Paulo Departamento de Zoologia (A Secretaria, 1943)

Papers and proceedings of the Royal Society of Tasmania - Royal Society of Tasmania. (The Society, 1877)

Papers from the Tortugas Laboratory of the Carnegie Institution of Washington - Carnegie Institution of Washington. Department of Marine Biology. (Carnegie Institution of Washington, 1918)

Park and cemetery and landscape gardening - Haight, R. J. (Rufus J.) (R.J. Haight, 1910)

The parks and gardens of Paris, considered in relation to the wants of other cities and of the public and private gardens; being notes on a study of Paris gardens - Robinson, W. (William), 1838 -1935 (Macmillan and co, 1878)

Partial stock list of everything pertaining to horticulture for 1905 now in stock at the Universal Horticultural Establishment - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.A. Manda, 1905)

Partial stock list of everything pertaining to horticulture for 1907 : now in stock at the Universal Horticultural Establishment - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.A. Manda, 1907)

Paxton's Botanical dictionary; comprising the names, history, and culture of all plants known in Britain; with a full explanation of technical terms. New ed. including all the new plants up to the present year - Paxton, Joseph, Sir, 1803 -1865 (Bradbury, Evans, & co, 1868)

Payne's garden guide, 1927 : seeds, plants and trees - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Theodore Payne, 1927)

Payne's garden guide [of] seeds, plants & trees : 1922 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Theodore Payne, 1922)

Payne's garden guide [of] seeds, plants and trees - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Theodore Payne, 1918)

Payne's garden guide [of] seeds, plants and trees : 1919 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Theodore Payne, 1919)