Published online by Cambridge University Press: 24 August 2009
* See, for example, the chapters on ‘Botany of Parthenium’ and ‘Production of Rubber from Guayule (Parthenium)’ in the late Loren G. Polhamus's Rubber: Botany, Production, and Utilization. (World Crops Books series, Gen. Ed. Nicholas Polunin.) Leonard Hill, London, & Interscience Publishers, New York: xvii + 448 pp., 64 plates, 7 figs in text, and XX Tables, 1962.—Ed.