| Popis: |
Over one thousand filamentous Zygnemataceae samples from eighteen clear-water Ontario lakes (pH 4.8 to 8.7) were examined from 1985 to 1988. The asexual and sexual reproduction of Zygogonium tunetanum GAUTHIER-LIEVRE, Temnogametum tirupatiense IYENGAR, Spirogyra jatobae TRANSEAU, Mougeotia laetevirens (BRAUN) WITTROCK and Zygnemopsis stephensiae TRANSEAU in the littoral areas of these lakes were described based on extensive field collections and laboratory observations. The zygospore germination in Z. tunetanum, M. laetevirens and S. jatobae was also photographed and described. |
