Trymbak Shankar Mahabale obtained his PhD from the University of Mumbai in 1939. He specialized in palaeobotany. He made significant contribution to the discovery of palms of India, fossil speices of a Latiferum fern. He carried out detailed study of anatomy of roots in forty important species of living palms and found that it is possible to resolve the fossil root genus Rhizopalmoxylon into its components on the basis of anatomical characters. Mahabale was the recipient of the Birbal Sahni Medal in 1978. He was a fellow of the Indian Academy of Sciences and National Academy of Sciencesll; President of Indian Botanical Society (1968). He was the President of Indian Science Congress; Vice-President, Palaeobotany Section, International Botanical Congress, Paris (1954).

Panchanan Maheshwari obtained his DSc from the University of Allahabadin 1931. His research topics included the development of gametophytes and embryo of Boerhaavia diffusa and causes of sterility in Albizzia lebbek. He discovered a new type of tetrasporic, 16-nucleate embryosac in Acalypha Indica. Several taxas were named after him, as a tribute to his role in Indian Botany. He was the General President Indian Science Congress Association in 1963. He was the Fellow, Royal Society of London; Indian Academy of Sciencs, Bangalore'; National Academy of Sciences, Allahabad; Foreign Member, Kaiserliche Deutsche Akademic des Naturforscher Leopoldina; Deutsche Botanishcer Gesselschaft.

16-19 April, 2023

At Snowbird Resort, Utah, United States.