One of the illustrious founder members of RSBS passed away on 11 April 2021. Jeremy David Pickett-Heaps FAA, FRS worked in the (then) Department of Developmental Biology from 1968-70. His surveys of ultrastructural aspects of cell division in green algae (many collected from Lake Burley Griffin and Sullivan’s Creek) led him to a new formulation of the evolution of the Plant Kingdom, a landmark contribution in the plant sciences, now confirmed and fleshed out by sequencing data.