"Closterium Nitzsch ex Ralfs, 1848" . "162725" . . _:b75849196 . . _:b76642547 . . . . _:b76642547 "162725" . _:b75849196 "2646356" . . . "Closterium" . . . _:b75849196 . _:b76642547 . "190949" . _:b75849196 . "Closterium" . _:b76642547 . _:b75849196 "GBIF id" . "Nitzsch ex Ralfs, 1848" . . "Closterium" . . _:b76642547 "WoRMS id" . "2646356" .