Symposium on Desmids and Other Zygnematales (Second International Desmid Symposium), Lake Itasca, Minnesota, 21-25 September 1976 : proceedings = Verhandlungen / edited by Paul Biebel & Dieter Mollenhauer
Introduction and some considerations on the present status of Zygnematales research / P. Biebel -- The Conjugatophyceae from Itasca State Park, Minnesota, USA / R.L. Meyer -- Concepts and strategies for research in Mesotaeniaceae / D. Mollenhauer -- Contributions towards a revision of the genus Spirotaenia (Mesotaeniaceae) / D. Mollenhauer -- A subcellular study of conjagation in Staurastrum gladiosum Turner / P.A. Winter -- Desmids and heavy metals / D. Lorch -- Structure and dynamics of desmid communities in hydrosere vegetation in a mesotrophic quivering bag / P.F.M. Coesel -- Some observations on polymorphism in populations of certain Xanthidium Taxa / J.F. Gerrath -- First report on zygospores of Euastrum evolutum (Nordst.) West & West and Xanthidium brebissonii var. varians Ralfs / K. Handke -- Beobachtungen über die Variationsbreite einiger Desmidiaceen (Befunde an Freilandmaterialien / K. Handke -- Conjugation and "free" zygospore formation in homothallic Cylindrocystis / J.R. Williams & P. Biebel
Notes
English and German
Held at the University of Minnesota Lake Itasca Biological Station