title: Translocation in Perennial Monocotyledons Tradescantia plants are still functional.
abstract: Gross autoradiography, historadiography, and electron microscopy provide evidence that enucleate sieve elements in basal internodes of relatively old Tradescantia plants are still functional.
authors.forename: W
authors.initials: W
authors.lastname: Heyser
authors.forename: W
authors.initials: W
authors.lastname: Eschrich
authors.forename: R F
authors.initials: RF
authors.lastname: Evert