Plant relations : a first book of botany - Coulter, John Merle, 1851 -1928 (D. Appleton and Company, 1910)

Plantae Asiaticae rariores, or, Descriptions and figures of a select number of unpublished East Indian plants - Wallich, N. (Nathaniel),‏ 1786 -1854 (Treuttel and Würtz, 1830)

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

Les plantes de serre; description, culture, emploi des espèces ornementales ou intéressantes cultivées dans les serres de l'Europe - Bellair, Georges Adolphe, 1860 -1939 (Octave Doin, 1900)

Plants and their uses; an introduction to botany - Sargent, Frederick Leroy, 1863 -1928 (H. Holt and company, 1913)

Plants and their ways in South Africa - Stoneman, Bertha M., 1866 -1943 (Longmans, Green, 1915)

Plants and their ways in South Africa - Stoneman, Bertha M., 1866 -1943 (Longmans, Green and Co, 1906)

Plants, bulbs, seeds to and from all over the world : wholesale list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Nurserymen's Exchange, 1947)

Plants in the Royal Botanical Gardens - Prestoe, Henry. (Scientific Association of Trinidad, 1869)

Plants of the Bermudas : or Somer's Islands - Reade, Oswald A. (Printed at the "Royal Gazette" Office, 1885)

Plants of the Punjab : a descriptive key to the flora of the Punjab, North-west Frontier Province, and Kashmir - Bamber, Charles James, 1855 - (Supt. Govt. Printing, Punjab, 1916)

Plants : a text-book of botany - Coulter, John Merle, 1851 -1928 (D. Appleton and Company, 1907)

A pocket botanical dictionary; comprising the names, history, and culture of all plants known in Britain; with a full explanation of technical terms - Lindley, John, 1799 -1865 (J. Andrews, 1840)

Les poissons du basin du Congo - Boulenger, George Albert 1858 -1937 (État indépendant du Congo, 1901)

Pollen - Edgeworth, Michael Pakenham, 1812 -1881 (Hardwicke & Bogue, 1877)

A popular California flora : or, Manual of botany for beginners, with illustrated introductory lessons, especially adapted to the Pacific coast; to which is added an Analytical key to west coast botany - Rattan, Volney, 1840 -1915 (Whitaker & Ray, 1896)

A popular California flora : or, manual of botany for beginners ... : to which is added an Analytical key to west coast botany ... - Rattan, Volney, 1840 -1915 (Bancroft, 1892)

A popular California flora, or, Manual of botany for beginners : with illustrated introductory lessons especially adapted to the Pacific coast : to which is added an analytical key to West Coast botany, containing brief descriptions of over 1600 species of Pacific coast plants - Rattan, Volney, 1840 -1915 (Bancroft, 1887)

Popular gardening and fruit growing; An illustrated periodical devoted to horticulture in all its branches (Popular gardening publishing company, 1885)

Popular gardening and fruit growing; An illustrated periodical devoted to horticulture in all its branches (Popular gardening publishing company, 1889)

Popular geography of plants; or, A botanical excursion round the world - Daubeny, Charles, 1795 -1867 (1855)

The Portland catalogue of Maine plants - Portland Society of Natural History (Me.) (Transcript Print, 1868)

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

Posthumous papers bequeathed to the honorable the East India company, and printed by order of the government of Bengal ... - Griffith, William, 1810 -1845 (Bishop's College Press, 1847)

Posthumous papers bequeathed to the honorable the East India company, and printed by order of the government of Bengal ... - Griffith, William, 1810 -1845 (Bishop's College Press, 1854)

Potter's cyclopaedia of botanical drugs and preparations - Holmes, E. M. (Edward Morell), 1843 -1930 (Potter & Clarke, 1915)

The practical gardener, and modern horticulturist - McIntosh, Charles, 1794 -1864 (T. Kelly, 1836)

Preliminary catalog of Anthophyta and Pteridophyta, reported as growing spontaneously within one hundred miles of New York City - Torrey Botanical Club. (1888)

A preliminary catalogue of the flora of New Jersey - Britton, Nathaniel Lord, 1859 -1934 (Office of the Survey, 1881)

Preliminary list of plants of Buffalo and its vicinity - Buffalo Society of Natural Sciences. (Young, Lockwood & Co's. steam press, 1864)

Price catalogue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (George E. Baldwin Inc, 1950)

Price catalogue 1948 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (George E. Baldwin, Inc, 1948)

Price catalogue : special offer of laelia cattleya hybrids - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (George E. Baldwin Inc, 1952)

Price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Lehigh Floral Co, 1952)

Price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Lehigh Floral Co, 1953)

Price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (N.W. Curson, 1955)

Price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (N.W. Curson, 1954)

[Price list] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Orchids by Wilson, 1949)

Price list, 1953-54 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Carolina Orchids, Inc, 1953)

Price list of orchids - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Lager & Hurrell, 1899)

Price list of orchids - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Lager & Hurrell, 1898)

Price list of orchids - Lager & Hurrell (Nursery) (Lager & Hurrell)

Price list of orchids - Lager & Hurrell (Nursery) (Lager & Hurrell, 1899)

Price list of orchids - Lager & Hurrell (Nursery) (Lager & Hurrell, 1901)

Price list of orchids - Lager & Hurrell (Nursery) (Lager & Hurrell, 1902)

Price list of orchids - Lager & Hurrell (Nursery) (Lager & Hurrell, 1910)

Price list of orchids plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Young Nurseries Inc, 1932)

Principios de botanica : sacados de los mejores escritores : y puestos en la lengua castellana. parte primera - Barnades, Miguel, 1708 -1771 (En la Imprenta de Antonio Perez De Soto, 1767)

The principles of plant-teratology - Worsdell, Wilson Crosfield (The Ray Society, 1916)

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

Principles of scientific botany, or, Botany as an inductive science - Lankester, Edwin, 1814 -1874 (Printed for Longman, Brown, Green, and Longmans, 1849)

The problem of Krakatao as seen by a botanist - Backer, C. A. (Cornelis Andries), 1874 -1963 (The author, 1900)

Proceedings and transactions of the Nova Scotian Institute of Natural Science - Nova Scotian Institute of Natural Science. (Nova Scotian Institute of Natural Science, 1883)

Proceedings - Cambridge Philosophical Society. Mathematical and physical sciences - Cambridge Philosophical Society. (Cambridge Philosophical Society [etc.], 1910)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1844)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1860)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1863)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1884)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1891)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1898)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1902)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1913)

Proceedings of the annual convention of the society of American Florists - Society of American Florists; Ornamental Horticulturists. (Society of American Florists and Ornamental Horticulturalists, 1885)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1892)

Proceedings of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1875)

Proceedings of the Canadian Institute - Glenny, George, 1793 -1874 (Canadian Institute, 1883)

Proceedings of the Davenport Academy of Natural Sciences - Davenport Academy of Natural Sciences. (Academy of Natural Sciences [etc.], 1867)

Proceedings of the Folkestone Natural History & Microscopical Society - Folkestone Natural History & Microscopical Society. (1868)

Proceedings of the Linnean Society of London - Linnean Society of London. (Published for the Linnean Society of London by Academic Press [etc.], 1909)

Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1887)

Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1888)

Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1910)

Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1913)

Proceedings of the Malacological Society of London - Malacological Society of London (Dulau, 1917)

Proceedings of the Malacological Society of London - Malacological Society of London (Dulau, 1921)

Proceedings of the Royal Irish Academy - Royal Irish Academy. (Royal Irish Academy, 1875)

Proceedings of the Royal Irish Academy - Royal Irish Academy. (Royal Irish Academy, 1891)

Proceedings of the Royal Irish Academy - Royal Irish Academy. (Royal Irish Academy, 1901)