1965. Articles written by Joseph Hers. Hers, J. (1922). Le culte des arbres en Chine. Bulletin de la Société dendrologique de France. Paris. 45. pp. 104–109. Hers, J. (1923a). Notes sur les saules et peupliers de la Chine du Nord. Bulletin de la Société dendrologique de France. 49: pp. 152– 159. Hers, J. (1923b). Coniferes. Bulletin de la Société dendrologique de France. 49:p. 170. References Bibliography Watt, Alistair (2019). Purdom and Farrer Plant Hunters on the Eaves of China. Published by author in an edition limited to 250 copies. Melbourne 2019. External links 'Hers' Juliana Lilac http://oasis.lib.harvard.edu/oasis/deliver/~ajp00051 1884 births 1965 deaths 20th-century Belgian botanists