 This research lead to the description of previously undescribed micro-organisms such as Isochrysis galbana.From the 1940s Parke led the development of the Plymouth Culture Collection of marine algae and first published the "Check-List of Marine Algae" in 1953.After the war Parke returned to her work on minute plankton and published seminal papers on flagellate systematics, many in collaboration with Professor Irene Manton of the University of Leeds.