"Closterium acerosum var. minus" . _:b75729641 "2646512" . _:b75407481 "AlgaeBase id" . _:b75407481 . _:b75729641 "GBIF id" . "Closterium acerosum var. minus Hantzsch, 1861" . . _:b75729641 . _:b75729641 . "Closterium acerosum var. minus" . _:b75729641 . . . _:b75407481 . _:b75407481 "g24f03ee09874923e" . . . "73048" . "2646512" . "g24f03ee09874923e" . . "Hantzsch, 1861" . . "Closterium acerosum var. minus" . . . _:b75407481 .