Trudy Imperatorskago S.-Peterburgskago botanicheskago sada.Acta Horti Petropolitani - Imperatorskii Sankt-Peterburgskii botanicheskii sad. (Imperatorskiǐ S.-Peterburgskiǐ botanicheskiǐ sad, 1902)

Trudy Imperatorskago S.-Peterburgskago botanicheskago sada.Acta Horti Petropolitani - Imperatorskii Sankt-Peterburgskii botanicheskii sad. (Imperatorskiǐ S.-Peterburgskiǐ botanicheskiǐ sad, 1901)

Über die Einrichtungen zur Befruchtung Britischer und ausländischer Orchideen durch Insekten : und über die günstigen Erfolge der Wechselbefruchtung - Darwin, Charles, 1809 -1882 (Schweizerbart'sche Verlagshandlung, 1862)

Uebersicht des Gewaechs-Reichs in seinen natuerlichen Entwickelungsstufen : ein Versuch - Reichenbach, H. G. Ludwig (Heinrich Gottlieb Ludwig), 1793 -1879 (Carl Cnobloch, 1828)

The Uganda protectorate : an attempt to give some description of the physical geography, botany, zoology, anthropology, languages and history of the territories under British protection in East Central Africa, between the Congo Free State and the Rift valley and between the first degree of south latitude and the fifth degree of north latitude - Johnston, Harry, 1858 -1927 (Hutchinson & Co, 1904)

The Uganda protectorate : an attempt to give some description of the physical geography, botany, zoology, anthropology, languages and history of the territories under British protection in East Central Africa, between the Congo Free State and the Rift Valley and between the first degree of south latitude and the fifth degree of north latitude - Johnston, Harry, 1858 -1927 (Hutchinson, 1902)

The Uganda protectorate; an attempt to give some description of the physical geography, botany, zoology, anthropology, languages and history of the territories under British protection in East Central Africa, between the Congo Free State and the Rift Valley and between the first degree of south latitude and the fifth degree of north latitude - Johnston, Harry, 1858 -1927 (Hutchinson & Co, 1902)

The unheated greenhouse - Davidson, K. L. ("Country life," ltd. [etc.], 1907)

United States Exploring Expedition. During the year 1838, 1839, 1840, 1841, 1842 - United States. Congress. (Printed by C. Sherman, 1845)

United States Exploring Expedition. During the year 1838, 1839, 1840, 1841, 1842 - United States. Congress. (Printed by C. Sherman, 1863)

The Universal herbal; or, Botanical, medical, and agricultural dictionary; containing an account of all the known plants in the world, arranged according to the Linnean system. Specifying the uses to which they are or may be applied, whether as food, as medicine, or in the arts and manufactures, with the best methods of propagation, and the most recent agricultural improvements ... - Green, Thomas. (Caxton Press, 1824)

The universal herbal : or botanical, medical and agricultural dictionary : containing an account of all known plants in the world, arranged according to the Linnean system. Specifying the uses to which they are or may be applied - Green, Thomas. (Printed at the Caxton Press by H. Fisher, 1816)

University of California publications in botany - University of California, Berkeley. (University of California Press, 1902)

University of California publications in botany - University of California, Berkeley. (University of California Press, 1921)

The University of Kansas science bulletin - University of Kansas. Museum of Natural History. (University of Kansas, 1967)

The University of Missouri studies. Science series - University of Missouri. (The University, 1905)

The University of Missouri studies. Science series - University of Missouri. (The University, 1907)

The University of Washington Arboretum bulletin - Arboretum Foundation (Seattle, Wash.) (University of Washington Arboretum Foundation, 1972)

The University of Washington Arboretum bulletin - Arboretum Foundation (Seattle, Wash.) (University of Washington Arboretum Foundation, 1973)

The University of Washington Arboretum bulletin - Arboretum Foundation (Seattle, Wash.) (University of Washington Arboretum Foundation, 1977)

The University of Washington Arboretum bulletin - Arboretum Foundation (Seattle, Wash.) (University of Washington Arboretum Foundation, 1981)

A university text-book of botany (Macmillan, 1910)

An unusual list of unusual perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Paramount Gardens, 1936)

Update to the status review of Howellia aquatilis : field surveys, monitoring studies, and transplant experiments, 1992 - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1992)

Useful plants of Nyasaland. Edited by P.J. Greenway - Greenway, Percy James, 1897 - (Printed and published by the Govt. Printer)

Utkast til svenska växternas naturhistoria : eller, Sveriges fanerogamer skildrade i korthet med deras växställen och utbredning m. m., deras egenskaper, användning och historia i allmänhet - Nyman, Carl Fredrik, 1820 -1893 (N. M. Lindh, 1867)

Växtnomenclatur : Innefattande de i Sverige vilde och odlade växternas släkt-och artnamn samt vanligare botaniska termer, deras betydelse, och betoning jämte förklaring af förkortade autorsnama - Lindgren, Erik, 1828 -1911 (Sigfrid Flodins Förlag, 1903)

The various contrivances by which orchids are fertilised by insects - Darwin, Charles, 1809 -1882 (J. Murray, 1904)

The various contrivances by which orchids are fertilised by insects - Darwin, Charles, 1809 -1882 (Appleton, 1877)

The various contrivances by which orchids are fertilised by insects - Darwin, Charles, 1809 -1882 (John Murray, 1877)

Various contrivances by which orchids are fertilised by insects - Darwin, Charles, 1809 -1882 (Appleton, 1892)

The various contrivances by which orchids are fertilised by insects - Darwin, Charles, 1809 -1882 (John Murray, 1890)

The various contrivances by which orchids are fertilised by insects - Darwin, Charles, 1809 -1882 (J. Murray, 1899)