Definitions for "Ectexine"
(sensu Fægri, 1956) The outer part of the exine, which stains positively with basic fuchsin in optical microscopy and has higher electron density in conventionally prepared TEM sections. Orthographical variant: ektexine. Comment: Ectexine includes the foot layer (nexine 1), if present. Erdtman introduced the term in 1943, but used sexine in his later publications. See also: sexine, endexine.