Mittheilungen über Flora, Gesellschaft für Botanik und Gartenbau, in Dresden - Flora, Gesellschaft für Botanik und Gartenbau, in Dresden. (In Commission der Arnoldischen Buchh, 1841)

Miyabe-festschrift, or A collection of botanical papers presented to Prof. Dr. Kingo Miyabe on the occasion of the twenty-fifth anniversary of his academic service by his friends and pupils - Miyabe, Kingo, 1860 -1951 (Rokumeikwan, 1911)

Modern biology - Moon, Truman Jesse, 1879 -1946 (Holt, Rinehart and Winston, 1965)

The modern horse doctor : containing practical observations on the causes, nature, and treatment of disease and lameness in horses : embracing the most recent and approved methods, according to an enlightened system of veterinary therapeutics, for the preservation and restoration of health - Dadd, George H., 1813 -1868 (J.P. Jewett, 1854)

The modern horse doctor : containing practical observations on the causes, nature, and treatment of disease and lameness in horses : embracing the most recent and approved methods, according to an enlightened system of veterinary therapeutics, for the preservation and restoration of health - Dadd, George H., 1813 -1868 (Published by John P. Jewett and Company, 1854)

Modern systematic studies in African botany : proceedings of the eleventh plenary meeting of the Association for the Taxonomic Study of the Flora of Tropical Africa, Missouri Botanical Garden, St. Louis, June 10-14, 1985 ... - Lowry, Porter Prescott. (Missouri Botanical Garden, 1985)

Monatsschrift des Vereines zur Beförderung des Gartenbaues in den Königl. Preussischen Staaten und der Gesellschaft der Gartenfreunde Berlins - Gesellschaft des Gartenfreunde Berlins. (P. Parey [etc.], 1881)

Monatsschrift für Kakteenkunde (J. Neumann, 1896)

A monograph of the North American Potentilleae - Rydberg, Per Axel, 1860 -1931 (New Era Printing Co.], 1898)

A monograph of the North American Potentilleae - Rydberg, Per Axel, 1860 -1931 (Press of the New Era Print. Co.], 1898)

Monographia uredinearum : seu specierum omnium ad hunc usque diem cognitarum descriptio et adumbratio systematica - Sydow, P. (Paul), 1851 -1925 (Fratres Borntraeger, 1904)

Monographie der Gattung Delphinium - Huth, Ernst, 1845 -1897 (Engelmann, 1895)

Monographieen afrikanischer Pflanzen-Familien und -Gattungen - Engler, Adolf, 1844 -1930 (W. Engelmann, 1898)

Monographs in systematic botany from the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden, 1981)

Monographs in systematic botany from the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden, 1984)

Monographs in systematic botany from the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden, 1988)

Montana wetland Index of Alien Impact (IAI) - Montana Natural Heritage Program. (Montana Natural Heritage Program, 2017)

More letters of Charles Darwin : a record of his work in a series of hitherto unpublished letters - Darwin, Charles, 1809 -1882 (D. Appleton and Company, 1903)

More letters of Charles Darwin. A record of his work in a series of hitherto unpublished letters - Darwin, Charles, 1809 -1882 (J. Murray, 1903)

Morphology and taxonomy of fungi - Bessey, Ernst Athearn, 1877 -1957 (Blakiston, 1950)

Morphology of angiosperms : (Morphology of spermatophytes, Part II) - Coulter, John Merle, 1851 -1928 (D. Appleton, 1909)

Morphology of angiosperms (Morphology of spermatophytes, Part II) - Coulter, John Merle, 1851 -1928 (Appleton & Co, 1903)

Morphology of angiosperms (Morphology of spermatophytes. Part II) - Coulter, John Merle, 1851 -1928 (D. Appleton, 1903)

The morphology of Ruppia maritima - Graves, Arthur Harmount, 1879 -1962 (Yale University, 1908)

Morphology of the angiosperms - Eames, Arthur J., 1881 -1969 (McGraw-Hill, 1961)

The morphology of the central cylinder in the angiosperms - Jeffrey, Edward C. (Edward Charles), 1866 - (s.n, 1899)

Morris Arboretum bulletin - University of Pennsylvania. Morris Arboretum. (Morris Arboretum, etc, 1943)

Morris Arboretum bulletin - University of Pennsylvania. Morris Arboretum. (Morris Arboretum, etc, 1961)

Morris Arboretum bulletin - University of Pennsylvania. Morris Arboretum. (Morris Arboretum, etc, 1962)

Morris Arboretum bulletin - University of Pennsylvania. Morris Arboretum. (Morris Arboretum, etc, 1969)