Addendum to Taraxacum.

During the printing procedure C.-F. Lundevall (Stockholm) and C. E. Sonck (Helsinki) have kindly pointed out that some new information has been brought for ward concerning the taxonomy of the genus Taraxacum. This information has not been possible to take into consideration in this account. The reader may be directed to the publication "Sectional nomenclature in Taraxacum (Asteraceae)", published by A. J. Richards in Taxon 34(4): 633-644, November 1985.