Verbatim text: Kress, W. J. and D. E. Stone. 1982. Nature of the sporoderm in monocotyledons, with special reference to the pollen grains of Canna and Heliconia. Grana 21: 129--148.
Author: Kress, W.J., Stone, D.E.
Year: 1982
Title: Nature of the sporoderm in monocotyledons, with special reference to the pollen grains of Canna and Heliconia
Journal: Grana
Volume: 21
Pages: 129–148