International catalogue of scientific literature M Botany - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1904)

International catalogue of scientific literature M Botany - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1905)

International catalogue of scientific literature M Botany - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1902)

International catalogue of scientific literature M Botany - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1908)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1902)

International catalogue of scientific literature M Botany - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1910)