A monograph of lichens found in Britain; being a descriptive catalogue of the species in the herbarium of the British Museum - British Museum (Natural History). Department of Botany. (Printed by Order of the Trustees, 1894)

A monograph of lichens found in Britain; being a descriptive catalogue of the species in the herbarium of the British Museum - British Museum (Natural History). Department of Botany. (Printed by Order of the Trustees, 1911)

A monograph of the British lichens; a descriptive catalogue of the species in the Department of Botany, British Museum - British Museum (Natural History). Department of Botany. (Trustees of the British Museum, 1918)

A monograph of the Norwegian Physciaceae - Lynge, Bernt, 1884 -1942 (In commission at J. Dybwad, 1916)

Monographie der Mistel - Neckel, Gustav, 1878 -1940 (Oldenbourg, 1923)

Monthly microscopical journal: transactions of the Royal Microscopical Society, and record of histological research at home and abroad - Royal Microscopical Society (Great Britain) (R. Hardwicke, 1869)

Morphologie und biologie der algen - Oltmanns, Friedrich, 1860 -1945 (G. Fischer, 1904)

Morphologie und Biologie der Algen - Oltmanns, Friedrich, 1860 -1945 (Fischer, 1922)

Morphologie und Biologie der Algen - Oltmanns, Friedrich, 1860 -1945 (G. Fischer, 1922)

Morphologie und biologie der algen - Oltmanns, Friedrich, 1860 -1945 (G. Fischer, 1905)

Morphologie und Physiologie der Pilze, Flechten und Myxomyceten - Bary, A. de (Anton), 1831 -1888 (W. Engelmann, 1866)

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

Moscosoa : contribuciones científicas del Jardín Botánico Nacional "Dr. Rafael M. Moscoso" - Jardín Botánico Nacional "Dr. Rafael M. Moscoso." (El Jardín, 2001)

Mosses and lichens : a popular guide to the identification and study of our commoner mosses and lichens, their uses, and methods of preserving - Marshall, Nina L. (Doubleday, Page & company, 1907)

Mosses and lichens; a popular guide to the identification and study of our commoner mosses and lichens, their uses, and methods of preserving - Marshall, Nina L. (Doubleday, Page, 1907)

Mosses and lichens : a popular guide to the identification and study of our commoner mosses and lichens, their uses, and methods of preserving - Marshall, Nina L. (Doubleday, Page, 1920)

Muelleria: An Australian Journal of Botany - Royal Botanic Gardens (Vic.) (National Herbarium of Victoria, 1969)

Muelleria: An Australian Journal of Botany - Royal Botanic Gardens (Vic.) (National Herbarium of Victoria, 1972)

Muelleria: An Australian Journal of Botany - Royal Botanic Gardens (Vic.) (National Herbarium of Victoria, 1974)

Muelleria: An Australian Journal of Botany - Royal Botanic Gardens (Vic.) (National Herbarium of Victoria, 1981)

Muelleria: An Australian Journal of Botany - Royal Botanic Gardens (Vic.) (National Herbarium of Victoria, 1990)

Muelleria: An Australian Journal of Botany - Royal Botanic Gardens (Vic.) (National Herbarium of Victoria, 1999)