Aquaphyte : newsletter of the IPPC Aquatic Weed Program of the University of Florida, a part of the International Plant Protection Center of the Oregon State University, which is funded by the United States Agency for International Development - University of Florida. Center for Aquatic Plants. (The Program, 1995)

Aquaphyte : newsletter of the IPPC Aquatic Weed Program of the University of Florida, a part of the International Plant Protection Center of the Oregon State University, which is funded by the United States Agency for International Development - University of Florida. Center for Aquatic Plants. (The Program, 2009)

Aquatic and wetland plants of southwestern United States - Correll, Donovan Stewart, 1908 -1983 (Environmental Protection Agency; [For sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1972)

Aquatic plants of Illinois; an illustrated manual including species submersed, floating, and some of shallow water and muddy shores - Lopinot, Alvin C. (Dept. of Registration & Education, Illinois State Museum Division, 1966)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 2013)

Archiv der Pharmazie - Deutscher Apotheker-Verein. (Deutscher Apotheker-Verein, 1861)

Archiv der Pharmazie - Deutscher Apotheker-Verein. (Deutscher Apotheker-Verein, 1863)

Archiv der Pharmazie - Deutscher Apotheker-Verein. (Deutscher Apotheker-Verein, 1909)

Archiv der Pharmazie - Deutscher Apotheker-Verein. (Deutscher Apotheker-Verein, 1856)

Archiv der Pharmazie - Deutscher Apotheker-Verein. (Deutscher Apotheker-Verein, 1864)

Archiv für Naturgeschichte. Abteilung B (Nicolai, 1913)

Archiv für Naturgeschichte (Nicolai, 1836)

Archiv für Naturgeschichte (Nicolai, 1844)

Archiv für Naturgeschichte (Nicolai, 1852)

Archiv für Naturgeschichte (Nicolai, 1902)

Archiv für Naturgeschichte (Nicolai, 1903)

Archives néerlandaises des sciences exactes et naturelles - Lotsy, Johannes Paulus, 1867 -1931 (Société hollandaise des sciences à Harlem, 1867)

Archivos - Escola Superior de Agricultura e Medicina Veterinaria (Imprensa Nacional)

Archivos do Instituto de Biologia Vegetal - Instituto de Biologia Vegetal (JBRJ, 1934)

Archivos do Jardim Botânico do Rio de Janeiro - Jardim Botânico do Rio de Janeiro. (Jardim Botanico, 1915)

Archivos do Museu Nacional do Rio de Janeiro - Museu Nacional (Brazil) ([Cysneiros & Cia, 1905)

Archivos do Museu Nacional do Rio de Janeiro - Museu Nacional (Brazil) ([Cysneiros & Cia, 1955)

Archivos do Museu Nacional do Rio de Janeiro - Museu Nacional (Brazil) ([Cysneiros & Cia, 2004)

Arkiv för botanik - Kungl. Svenska vetenskapsakademien. (Almqvist & Wiksell, 1909)

Arnaldoa : revista del Herbario HAO - Herbario HAO. (Universidad Antenor Orrego de Trujillo, 1991)

Arnaldoa : revista del Herbario HAO - Herbario HAO. (Universidad Antenor Orrego de Trujillo, 1993)

Arnaldoa : revista del Herbario HAO - Herbario HAO. (Universidad Antenor Orrego de Trujillo, 1995)

Arnaldoa : revista del Herbario HAO - Herbario HAO. (Universidad Antenor Orrego de Trujillo, 1996)

Arnaldoa : revista del Herbario HAO - Herbario HAO. (Universidad Antenor Orrego de Trujillo, 1998)

Arnaldoa : revista del Herbario HAO - Herbario HAO. (Universidad Antenor Orrego de Trujillo, 1999)

Arnaldoa : revista del Herbario HAO - Herbario HAO. (Universidad Antenor Orrego de Trujillo, 2001)

Arnaldoa : revista del Herbario HAO - Herbario HAO. (Universidad Antenor Orrego de Trujillo, 2002)

Arnaldoa : revista del Herbario HAO - Herbario HAO. (Universidad Antenor Orrego de Trujillo, 2003)

Arnaldoa : revista del Herbario HAO - Herbario HAO. (Universidad Antenor Orrego de Trujillo, 2005)

Arnaldoa : revista del Herbario HAO - Herbario HAO. (Universidad Antenor Orrego de Trujillo, 2006)

Arnaldoa : revista del Herbario HAO - Herbario HAO. (Universidad Antenor Orrego de Trujillo, 2007)

Arnaldoa : revista del Herbario HAO - Herbario HAO. (Universidad Antenor Orrego de Trujillo, 2009)

Arnaldoa : revista del Herbario HAO - Herbario HAO. (Universidad Antenor Orrego de Trujillo, 2014)

Arnaldoa : revista del Herbario HAO - Herbario HAO. (Universidad Antenor Orrego de Trujillo, 2015)

Arnaldoa : revista del Herbario HAO - Herbario HAO. (Universidad Antenor Orrego de Trujillo, 2016)

Arnaldoa : revista del Herbario HAO - Herbario HAO. (Universidad Antenor Orrego de Trujillo, 2017)

Arnaldoa : revista del Herbario HAO - Herbario HAO. (Universidad Antenor Orrego de Trujillo, 2018)

Arnoldia - Arnold Arboretum. (Arnold Arboretum, Harvard University, 1968)

Arnoldia - Arnold Arboretum. (Arnold Arboretum, Harvard University, 1970)

Arnoldia - Arnold Arboretum. (Arnold Arboretum, Harvard University, 1975)

Arnoldia - Arnold Arboretum. (Arnold Arboretum, Harvard University, 1941)

Arnoldia - Arnold Arboretum. (Arnold Arboretum, Harvard University, 2002)

Arquivo da Universidade de Lisboa - Universidade de Lisboa. Jardim Botânico. (Universidade, 1914)

Arquivo da Universidade de Lisboa - Universidade de Lisboa. Jardim Botânico. (Universidade, 1915)

Arquivos do Serviço Florestal (Serviço Florestal, 1943)

Arquivos do Serviço Florestal (Serviço Florestal, 1951)

Asa Gray and John Torrey correspondence, 1831-1871 - Gray, Asa, 1810 -1888 (1843)

Asa Gray and John Torrey correspondence, 1831-1871 - Gray, Asa, 1810 -1888 (1846)

Asa Gray and John Torrey correspondence, 1831-1871 - Gray, Asa, 1810 -1888 (1847)

Asa Gray and John Torrey correspondence, 1831-1871 - Gray, Asa, 1810 -1888 (1857)

Asa Gray and John Torrey correspondence, 1831-1871 - Gray, Asa, 1810 -1888 (1858)

The Asa Gray bulletin - McVaugh, Rogers, 1909 - (1953)

The ASB bulletin - Association of Southeastern Biologists. (Association of Southeastern Biologists, 1979)

Atas do simpósio sobre a biota amazônica Belém, Pará, Brasil, Junho 6-11, 1966 - Lent, Herman (Conselho Nacional de Pesquisas (CNPQ), 1967)

ATF/SIC 5, Takelma, June-July 1964 - National Museum of Natural History (U.S.) Pacific Ocean Biological Survey Program (1964)

Atlante botanico; secondo il sistema naturale di De Candolle; 85 tavole miniate con testo esplicativo ridotto a dizione italiana da Giovanni Briosi - Candolle, Alphonse de, 1806 -1893 (Ulrico Hoepli, 1886)

Atlas of the rare vascular plants of Ontario - Argus, George W. (George William) (Botany Division, National Museum of Natural Sciences = Division de la botanique, Musée national des sciences naturelles, 1982)

Atoll research bulletin - Smithsonian Institution ([Smithsonian Press, 1955)

Atoll research bulletin - Smithsonian Institution ([Smithsonian Press, 1957)

Atoll research bulletin - Smithsonian Institution ([Smithsonian Press, 1962)

Atoll research bulletin - Smithsonian Institution ([Smithsonian Press, 1965)

Atoll research bulletin - Smithsonian Institution ([Smithsonian Press, 1967)

Atoll research bulletin - Smithsonian Institution ([Smithsonian Press, 1969)

Atoll research bulletin - Smithsonian Institution ([Smithsonian Press, 1971)

Atoll research bulletin - Smithsonian Institution ([Smithsonian Press, 1975)

Atoll research bulletin - Smithsonian Institution ([Smithsonian Press, 1979)

Atoll research bulletin - Smithsonian Institution ([Smithsonian Press, 1981)

Atoll research bulletin - Smithsonian Institution ([Smithsonian Press, 1983)

Atoll research bulletin - Smithsonian Institution ([Smithsonian Press, 1985)

Atoll research bulletin - Smithsonian Institution ([Smithsonian Press, 1987)

Atoll research bulletin - Smithsonian Institution ([Smithsonian Press, 1988)

Atoll research bulletin - Smithsonian Institution ([Smithsonian Press, 1991)

Atoll research bulletin - Smithsonian Institution ([Smithsonian Press, 1992)

Atoll research bulletin - Smithsonian Institution ([Smithsonian Press, 1994)

Atoll research bulletin - Smithsonian Institution ([Smithsonian Press, 2002)

Atoll research bulletin - Smithsonian Institution ([Smithsonian Press, 2003)

Atoll research bulletin - Smithsonian Institution ([Smithsonian Press, 2009)

Atti del museo civico di storia naturale di Trieste - Museo civico di storia naturale (Trieste, Italy) (Il Museo, 1890)

Atti del museo civico di storia naturale di Trieste - Museo civico di storia naturale (Trieste, Italy) (Il Museo, 1895)

Atti della Reale accademia delle scienze fisiche e matematiche - Reale Accademia delle scienze fisiche e matematiche di Napoli. (Tip. della R. Accademia delle scienze fisiche et matematiche, 1863)

Atti della Società dei naturalisti e matematici di Modena - Società dei naturalisti e matematici di Modena. (Società Tipografica Editrice Modenese - Mucchi, 1892)

Atti della Società italiana di scienze naturali e del Museo civico di storia naturale di Milano - Museo civico di storia naturale di Milano. (La Società, 1909)

Atti - Università di Pavia. Istituto botanico. (Tip. Fusi [etc.], 1920)

Auf einer Reise in Westindien und Südamerika gesammelte Pflanzen - Therese, Princess of Bavaria, 1850 -1925 (G. Fischer, 1902)