The species concept in desmids: the problem of variability, infraspecific taxa and the monothetic species definition
Authors:
Frans A. C. Kouwets
Affiliation:
(1) Hydrobiological Laboratory, RWS — Centre for Water Management, P.O. Box 17, NL-8200 AA Lelystad, The Netherlands;(2) IBED, University of Amsterdam, P.O. Box 94062, 1090 GB Amsterdam, The Netherlands