Portraits of botanists who worked on the Ryukyu Islands, 80 in number, most Japanese, a few Americans, were published in the book by S. Hatusima, Flora of the Ryukyus, p. 56-75 (1971). Baas Becking, L. G. M. A meticulous bibliography, of the former Professor of Experimental Botany at Leiden and later Director of the Bogor Botanic Gardens, was prepared by J. Westenberg, 20 p. (North Holland Publishing Company, Amsterdam, 1977).