Aechmea egleriana var. major L.B.Sm.    

plant flowering over 6 dm high. leaves to 11 dm long; sheath ample, over 3 dm long. inflorescence amply twice-branched, 37 cm long.

Edited from ( 4-13-2014): Smith & Downs 1979. Bromelioideae (Bromeliaceae) in Flora Neotropica.