TUBULAR STRUCTURES IN THE PLASTIDS OF ECHINOMASTUS INTERTEXTUS BRIT. & ROSE (CACTACEAE).Published in:New Phytologist, 1982, v. 90, n. 3, p. 551, doi. 10.1111/j.1469-8137.1982.tb04488.xBy:Rivera, E. R.;Arnott, H. J.Publication type:Article