1956 Diary. Section 1, 1956-57 Expedition Diary of L. J. Brass - American Museum of Natural History (1956)

1997 IUCN red list of threatened plants (1997)

Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft - Senckenbergische Naturforschende Gesellschaft. (Waldemar Kramer [etc.], 1897)

Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft - Senckenbergische Naturforschende Gesellschaft. (Waldemar Kramer [etc.], 1899)

Abhandlungen herausgegeben vom Naturwissenschaftlichen Verein zu Bremen - Naturwissenschaftlicher Verein zu Bremen. (Im Selbstverlag des Naturwissenschaftlichen Vereins, 1889)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 1993)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 1994)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 1996)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2010)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2013)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2015)

Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2018)

Adansonia - Muséum national d'histoire naturelle (France) (Muséum d'histoire naturelle, Laboratoire de Phanérogamie, 1964)

Adansonia - Muséum national d'histoire naturelle (France) (Muséum d'histoire naturelle, Laboratoire de Phanérogamie, 1973)

Allan Hancock Pacific expeditions. [Reports] - Allan Hancock Foundation. (University of Southern California Press, 1946)

Allgemeine botanische Zeitschrift für Systematik, Floristik, Pflanzengeographie etc - Kneucker, Johann Andreas, 1862 -1946 (J.J. Reiff, 1904)

Allgemeine botanische Zeitschrift für Systematik, Floristik, Pflanzengeographie etc - Kneucker, Johann Andreas, 1862 -1946 (J.J. Reiff, 1912)

American journal of botany - Botanical Society of America. (Published in cooperation with the Botanical Society of America by the Brooklyn Botanic Gardens, 1914)

American journal of botany - Botanical Society of America. (Published in cooperation with the Botanical Society of America by the Brooklyn Botanic Gardens, 1916)

American journal of botany - Botanical Society of America. (Published in cooperation with the Botanical Society of America by the Brooklyn Botanic Gardens, 1920)

The American woods : exhibited by actual specimens and with copious explanatory text - Hough, Romeyn Beck, 1857 -1924 (Pub., and sections prepared by the author, 1910)

The American woods : exhibited by actual specimens and with copious explanatory text - Hough, Romeyn Beck, 1857 -1924 (Pub. and sections prepared by the author, 1888)

Anales de la Academia de Ciencias Médicas, Físicas y Naturales de la Habana - Academia de Ciencias Médicas, Físicas y Naturales de La Habana. (Academia de Ciencias Médicas, Físicas y Naturales de la Habana, 1868)

Analytical key to the ferns and flowering plants in the Atlantic section of middle Florida. (Wild and cultivated) - Baerecke, John Frederic, 1851 -1920 (News Pub. Co, 1914)

Annalen des K.K. Naturhistorischen Hofmuseums - K.K. Naturhistorisches Hofmuseum (Vienna, Austria) (Alfred Hölder, 1888)

Annales botanices systematicae - Walpers, Wilhelm Gerhard, 1816 -1853 (Sumtibus F. Hofmeister, 1848)

Annales de la Société scientifique de Bruxelles - Société scientifique de Bruxelles. (1922)

Annales du Jardin botanique de Buitenzorg - Kebun Raya Indonesia. (E.J. Brill [etc.], 1923)

Annales du Jardin botanique de Buitenzorg - Kebun Raya Indonesia. (E.J. Brill [etc.], 1910)

Annali di botanica - Università degli studi di Roma "La Sapienza". Dipartimento di biologia vegetale. (Tipografia F. Failli [etc.], 1907)

Annals of applied biology - Association of Applied Biologists. (Association of Applied Biologists [etc.], 1919)

Annals of botany - Balfour, Isaac Bayley, 1853 -1922 (Academic Press [etc.], 1902)

Annals of botany - Balfour, Isaac Bayley, 1853 -1922 (Academic Press [etc.], 1921)

Annals of botany - Balfour, Isaac Bayley, 1853 -1922 (Academic Press [etc.], 1923)

The annals of the Bolus Herbarium ... - Bolus Herbarium. (1918)

Annals of the Carnegie Museum - Carnegie Museum (Published by authority of the Board of Trustees of the Carnegie Institute, 1934)

Annals of the Carnegie Museum - Carnegie Museum (Published by authority of the Board of Trustees of the Carnegie Institute, 1980)

Annals of the Carnegie Museum - Carnegie Museum (Published by authority of the Board of Trustees of the Carnegie Institute, 1993)

Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press, 1915)

Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press, 1958)

Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press, 1965)

Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press, 1967)

Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press, 1969)

Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press, 1970)

Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press, 1972)

Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press, 1973)

Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press, 1974)

Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press, 1975)

Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press, 1976)

Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press, 1977)

Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press)

Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press, 1979)

Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press, 1980)

Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press, 1982)

Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press, 1983)

Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press, 1984)

Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press, 1985)

Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press, 1987)

Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press, 1988)