Verbatim text: Björkquist, I. 1968. Studies in Alisma L. II. Chromosome studies, crossing experiments and taxonomy. Opera Bot. 19: 1--138.
Author: Björkquist, I.
Year: 1968
Title: Studies in Alisma L. II. Chromosome studies, crossing experiments and taxonomy
Journal: Opera Bot
Volume: 19
Pages: 1–138