Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1916)

Observations on the Neilgherries; including an account of their topography, climate, soil, & productions, and of the effects of the climate on the European constitution ... - Baikie, Robert. (Printed at the Baptist mission press, 1834)

Occasional papers on mollusks - Harvard University. Museum of Comparative Zoology. Department of Mollusks. (Dept. of Mollusks, 1981)

Odorographia : a natural history of raw materials and drugs used in the perfume industry : intended to serve growers, manufacturers and consumers - Sawer, John Charles (Gurney & Jackson, 1892)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1889)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1915)

Oesterreichische botanische Zeitschrift (A. Skofitz, 1916)

Oesterreichisches botanisches Wochenblatt ([L.W. Seidel], 1854)

Official guide to the museums of economic botany. No. 2, Monocotyledons and cryptogams (Printed for H.M. Stationary Off. by Eyre and Spottiswoode, 1895)

Öfversigt af Kongl. Vetenskaps-akademiens forhandlingar - Kungl. Svenska vetenskapsakademien. (P. A. Norstedt & Söner, 1854)

Les orchidées exotiques et leur culture en Europe - Cogniaux, Alfred, 1841 -1916 (l'Auteur, 1894)

Orchidophile; journal des amateurs d'orchideés - Godefroy-Lebeuf, A. (Alexandre), 1844 -1903 (1885)

Orchidophile; journal des amateurs d'orchideés - Godefroy-Lebeuf, A. (Alexandre), 1844 -1903 (1886)

Orchidophile; journal des amateurs d'orchideés - Godefroy-Lebeuf, A. (Alexandre), 1844 -1903 (1890)

Orchis :Monatsschrift der Deutschen Gesellschaft für Orchideenkunde - Dammer, Udo. (1910)

Organographie der Pflanzen, insbesondere der Archegoniaten und Samenpflanzen - Goebel, K. (Karl), 1855 -1932 (G. Fischer, 1898)

Organography of plants, especially of the archegoniatae and spermaphyta - Goebel, K. (Karl), 1855 -1932 (Clar. Press, 1900)

Florist's journal (How and Parsons, 1840)

Ornamental and fruit trees and shrubs. a guide to Southern horticulture .... 1918 catalog - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Royal Palm Nurseries, 1918)

Ornamental plants for low-elevation desert areas of southern California - Mathias, Mildred Esther, 1906 - (California Agricultural Experiment Station, 1955)

Ornamentals for low-elevation desert areas of southern California - Mathias, Mildred Esther, 1906 - (Division of Agricultural Sciences, University of California, 1961)

Our new guide : autumn 1897 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Dingee & Conard Co, 1897)

Our new guide to rose culture : 1897 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Dingee & Conard Co, 1897)

Our new guide to rose culture : 1899 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Dingee & Conard Co, 1898)

Out-of-the-ordinary bulbs, 1942-1943 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Oakhurst Gardens, 1942)

Out-of-the-ordinary bulbs, 1945 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Oakhurst Gardens, 1945)

Out-of-the-ordinary bulbs, 1946 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Oakhurst Gardens, 1946)

Out-of-the-ordinary bulbs, fall 1946 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Oakhurst Gardens, 1946)

Out-of-the-ordinary bulbs for 1941 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Oakhurst Gardens, 1941)

Out-of-the-ordinary bulbs for 1958 : 30 years of catering to the bulb collector - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Oakhurst Gardens, 1958)

Out-of-the-ordinary bulbs for 1958 : 31 years of catering to the bulb collector - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Oakhurst Gardens, 1959)

Out-of-the-ordinary bulbs, orchids : 1950 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Oakhurst Gardens, 1950)

Outlines of classification and special morphology of plants - Balfour, Isaac Bayley, 1853 -1922 (Clarendon Press, 1887)

Outlines of classification and special morphology of plants - Goebel, K. (Karl), 1855 -1932 (Clarendon Press, 1887)

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)

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, 1912)

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

Packaged bulbs : packaged roses - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Growers Exchange Inc, 1959)

Palais de San Donato : Catalogue de plantes rares garnissant les serres, dont la vente aux enchères publiques aura lieu à Florence, au Palais de San Donato, du vendredi 23 avril au mardi 4 mai 1880 à une heure précise - Palais De San Donato, Florence (1879)

Papers and proceedings of the Royal Society of Tasmania - Royal Society of Tasmania. (The Society, 1878)

Park and cemetery and landscape gardening - Haight, R. J. (Rufus J.) (R.J. Haight, 1903)

Park's floral guide, 1896 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1896)

Park's floral guide for 1907 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1907)

Park's floral guide for 1908 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1908)

Park's floral guide for 1913 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1913)

Park's flower book for 1953 : seeds, bulbs, plants : "all the best of new and old" - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Co, 1953)

Park's flower book for 1955 : "all the best of new and old" : seeds, bulbs, plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Co, 1955)

Park's flower book : season 1938, 70th anniversary - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Company, 1938)

Park's flower book : season 1939 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Company, 1939)

Park's flower book : spring 1943, seventy-fifth Anniversary - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Company, 1943)

Park's illustrated flower book of choice dependable seeds : season of 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1929)

Park's illustrated flower book of choice dependable seeds : season of 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1932)

Park's illustrated flower book of choice dependable seeds : season of 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Company, 1935)

Park's illustrated flower book of choice dependable seeds, season of 1934 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park, 1934)

Park's illustrated flower book of choice dependable seeds, season of 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Company, 1937)

Park's illustrated flower book of choice dependable seeds, season of 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Geo. W. Park Seed Company, 1936)

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)

The parks, promenades, & gardens of Paris, described and considered in relation to the wants of our own cities, and the public and private gardens - Robinson, W. (William), 1838 -1935 (J. Murray, 1869)

Pathological plant anatomy - Küster, Ernst, 1874 -1953 (1913)

Paxton's flower garden - Lindley, John, 1799 -1865 (Cassell, Petter, Galpin & Co, 1882)

Paxton's flower garden - Lindley, John, 1799 -1865 (1853)

Paxton's magazine of botany, and register of flowering plants - Paxton, Joseph, Sir, 1803 -1865 (Orr and Smith [etc.], 1838)

Paxton's magazine of botany, and register of flowering plants - Paxton, Joseph, Sir, 1803 -1865 (Orr and Smith [etc.], 1849)

Pearce Seed Co., rare plant nursery : offer no. 71, 1959 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pearce Seed Company, 1959)

Pearce seed company : rare plant nursery, offer no. 69, 1958 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pearce Seed Company, 1958)

Pearce seeds, plants and bulbs : offer 45A (1946) - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1946)

Pearce seeds, plants, bulbs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1945)

Pearce seeds, plants, bulbs : offer 39A - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rex D. Pearce, 1943)

Perennial flowering plants, rock garden plants, herbs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Tuttle Bros. Nurseries, 1937)

Perennial flowering plants, rock garden plants, herbs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Tuttle Bros. Nurseries, 1935)

Perennials, shrubs, trees, vines, ferns, espaliers, ground covers : wholesale list, 1944 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Tuttle Bros. Nurseries, 1944)

Perennials, shrubs, trees, vines, ferns, espaliers, ground covers : wholesale price list, 1943 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Tuttle Bros. Nurseries, 1943)

Permanent plants for American gardens - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Foster Nurseries, 1949)

Permanent plants for American gardens - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Foster Nurseries, 1950)

Permanent plants for American gardens : for a colorful carefree garden plant the new flowering quinces - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Foster Nurseries, 1951)

Permanent plants for American gardens : for a colorful carefree garden plant the new flowering quinces - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Foster Nurseries, 1953)

Pesticides documentation bulletin - National Agricultural Library (U.S.) (National Agricultural Library, U.S. Dept. of Agriculture, #c 1965-1969, 1965)

Pflanzen-geographie auf physiologischer Grundlage - Schimper, A. F. W. (Andreas Franz Wilhelm), 1856 -1901 (Gustav Fischer, 1908)

Pflanzen-Sammlung des Leichtlin'schen Gartens in Baden-Baden - Leichtlin, Max. (Max Leichtlin, 1882)

Pflanzen-teratologie systematisch geordnet - Penzig, O. (Ottone), 1856 -1929 (A. Ciminago, 1894)

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

Das Pflanzenreich :regni vegetablilis conspectus - Engler, Adolf, 1844 -1930 (W. Engelmann, 1904)

Pharmaceutical journal and transactions - Pharmaceutical Society of Great Britain. (J. & A. Churchill, 1880)

Pharmaceutical journal and transactions - Pharmaceutical Society of Great Britain. (J. & A. Churchill, 1878)

Pharmacographia indica :A history of the principal drugs of vegetable origin, met with in British India - Dymock, William, 1834 -1892 (K. Paul, Trench, Trübner & co., ld; [etc. etc.], 1892)

Pharmacographia indica :A history of the principal drugs of vegetable origin, met with in British India - Dymock, William, 1834 -1892 (K. Paul, Trench, Trübner & co., ld; [etc. etc.], 1893)

Pharmacographia indica a history of the principal drugs of vegetable origin, met with in British India - Dymock, William, 1834 -1892 (K. Paul, Trench, Trübner, 1890)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1909)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1912)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1906)

Philosophical transactions of the Royal Society of London - Royal Society (Great Britain) (Royal Society of London, 1854)

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, 1976)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1977)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1986)