Five taxa: Trachelomoas volvocina, T. volvocina var. subglobosa, T. hispida var. hispida, T. obovata, and T. intermedia fo. papillata. were found in puddles in Warszawa and Ko?obrzeg. From among them T. intermedia fo. papillata was for the first time recorded in Poland; while T. obovata and T. volvocina var. subglobosa are rarely recorded in Poland. All of them are briefly described; and accompanied by SEM photographs.
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