Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1994)

Phytoneuron (Guy L. Nesom, 2015)

Plant anatomy : from the standpoint of the development and functions of the tissues : and handbook of micro-technic - Stevens, William Chase, 1861 -1955 (P. Blakiston, 1907)

Plant anatomy from the standpoint of the development and functions of the tissues, and handbook of micro-technic - Stevens, William Chase, 1861 -1955 (P. Blakiston's Son, 1910)

Plant anatomy from the standpoint of the development and functions of the tissues, and handbook of microtechnic - Stevens, William Chase, 1861 -1955 (P. Blakiston, 1910)

Plant culture; a working hand-book of every day practice for all who grow flowering and ornamental plants in the garden and greenhouse - Oliver, George W. (George Watson), 1858 -1923 (A. T. De La Mare Printing and Publishing Co., Ltd, 1909)

Plant culture; a working handbook of every day practice for all who grow flowering and ornamental plants in the garden and greenhouse - Oliver, George W. (George Watson), 1858 -1923 (A. T. De La Mare Printing and Publishing Co, 1900)

Plant culture; a working hand-book of every day practice for all who grow flowering and ornamental plants in the garden and greenhouse - Oliver, George W. (George Watson), 1858 -1923 (A. T. De La Mare Printing and Publishing Co, 1912)

Plant immigrants - United States. Office of Foreign Seed; Plant Introduction. (Office of Foreign Seed and Plant Introduction, 1917)

Plant immigrants - United States. Office of Foreign Seed; Plant Introduction. (Office of Foreign Seed and Plant Introduction, 1920)

Plant immigrants - United States. Office of Foreign Seed; Plant Introduction. (Office of Foreign Seed and Plant Introduction, 1921)

Plant immigrants - United States. Office of Foreign Seed; Plant Introduction. (Office of Foreign Seed and Plant Introduction, 1923)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1923)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1929)

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, 1942)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1958)

Plant lists, Mexico - Hinton, George B., 1882 -1947 (1931)

Plant lore, legends, and lyrics. Embracing the myths, traditions, superstitions, and folk-lore of the plant kingdom - Folkard, Richard. (S. Low, Marston, Searle, and Rivington, 1884)

Plant physiology - Hopping, Aleita, 1890 - (P. Blakiston's Son & Co, 1918)

Plant physiology; authorized English translation by R. J. HarveyGibson; supplement incorporating the alterations of the 2d ed. of the German original - Harvey-Gibson, R. J. (Robert John), 1860 -1929 (Clarendon Press, 1913)

Plant physiology - Hopping, Aleita, 1890 - (P. Blakiston, 1923)

Plant physiology - Hopping, Aleita, 1890 - (P. Blakiston's son & co, 1923)

Plantae Mexicanae. 1885-1906 - Pringle, Cyrus G. (Cyrus Guernsey), 1838 -1911 (C.G. Pringle, 1892)

Plantae Thunbergianae : ein Verzeichnis der von C. P. Thunberg in Südafrika, Indien und Japan gesammelten und der in seinen Schriften beschriebenen oder erwähnten Pflanzen, sowie von den Exemplaren derselben, die im Herbarium Thunbergianum in Upsala aufbewahrt sind - Thunberg, Carl Peter, 1743 -1828 (A.-b. Akademiska bokhandeln, 1918)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1990)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1991)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1992)

The popular encyclopedia; being a general dictionary of arts, sciences, literature, biography, history, and political economy, reprinted from the American edition of the "Conversations lexicon" ... with dissertations on the rise and progress of literature (Blackie, 1900)

Popular gardening and fruit growing; An illustrated periodical devoted to horticulture in all its branches (Popular gardening publishing company, 1887)

The Popular science monthly - Harry Houdini Collection (Library of Congress) (Popular Science Pub. Co., etc, 1904)

Practical floriculture; a guide to the successful cultivation of florists' plants, for the amateur and professional florist - Henderson, Peter, 1822 -1890 (O. Judd company, 1883)

The practical garden-book, containing the simplest directions for the growing of the commonest things about the house and garden - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Grosset & Dunlap, 1906)

A practical guide to garden plants, containing descriptions of the hardiest and most beautiful annuals and biennials, hardy herbaceous and bulbous perennials, hardy water and bog plants, flowering and ornamental trees and shrubs, conifers; hardy ferns; hardy bamboos and other ornamental grasses. Also the best kinds of fruits and vegetables that may be grown in the open air in the British Isles with full and practical instruction as to culture and propagation - Weathers, John, 1867 -1928 (Longmans, Green, 1901)

A practical manual of medical and biological staining techniques - Gurr, Edward. (Interscience Publishers, 1956)

Practical plant biochemistry - Onslow, Muriel Wheldale 1880 -1932 (University Press, 1923)

Practical plant biochemistry - Onslow, Muriel Wheldale 1880 -1932 (University Press, 1920)

Practical plant biochemistry - Onslow, Muriel Wheldale 1880 -1932 (University press, 1920)

Practical plant physiology : an introduction to original research for students and teachers of natural science, medicine, agriculture and forestry - Detmer, W. (Wilhelm), 1850 -1930 (Swan Sonnenschein, 1898)

Practical plant physiology : an introduction to original research for students and teachers of natural science, medicine, agriculture and forestry - Detmer, W. (Wilhelm), 1850 -1930 (S. Sonnenschein, 1898)

Practical seeds for practical farmers : seeds for profit and seeds for pleasure - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Lake View Seed Gardens, 1904)

Price list - California Nursery Co. (The Nursery, 1913)

Price list - California Nursery Co. (The Nursery, 1914)

Price list - California Nursery Co. (The Nursery, 1915)

Price list - California Nursery Co. (The Nursery, 1916)

Price list - California Nursery Co. (The Nursery, 1917)

Price list : 1913-1914 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1913)

Price list : 1915-1916 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1915)

Price list : 1916-1917 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1916)

Price list : 1917-1918 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (California Nursery Company, 1917)

Price list : 1929 : fruit trees, grape and berry vines, ornamental trees and shrubs, roses, palms and tropical plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pioneer Nursery of Monrovia, 1929)

Price list of choice irises with ratings, name of orginator and date of origin and brief descriptions : 1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (R. Wayman, 1928)

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 the Pacific Nurseries : fruit and ornamental trees, shrubs, roses, palms, bedding and border plants, bulbs, vines and house plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pacific Nurseries, 1916)

Price list : Offer No. 53, February 15, 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, inc, 1930)

Price list : Offer No. 54, March 15, 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, inc, 1930)

Price list : Offer No. 55, April 11, 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, inc, 1930)

Price list : Offer No. 56, May 5, 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herbst Brothers, inc, 1930)

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)

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 Asiatic Society of Bengal - Asiatic Society of Bengal ([The Society], 1865)

Proceedings of the California Academy of Sciences, 4th series - California Academy of Sciences (California Academy of Sciences, 1953)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1987)