Nora Lilian Alcock (1874–1972), British plant pathologist Alice Alldredge, (1949-) American oceanographer and researcher of marine snow, discover of Transparent Exopolymer Particles (TEP) and demersal zooplankton June Almeida (1930–2007), British virologist E. K. Janaki Ammal (1897–1984), Indian botanist Yvonne Barr (1932–), British virologist (co-discovery of Epstein-Barr virus) Lela Viola Barton (1901–1967), American botanist Kathleen Basford (1916–1998), British botanist