248 MYRIOPHYLLUM SPICATUM L 1-6
  226 CERATOPHYLLUM DEMERSUM  1-6
  206 POTAMOGETON PECTINATUS  1-6
  145 RANUNCULUS CIRCINATUS S 1-6
  131 NUPHAR LUTEUM SM.       1-6
  119 POTAMOGETON LUCENS L.   1-6
   95 LEMNA MINOR L.          1-6
   95 POTAMOGETON PERFOLIATUS 1-6
   94 HELODEA CANADENSIS RICH 1-6
   87 SPARGANIUM SIMPLEX HUDS 1-6
   85 POTAMOGETON CRISPUS L.  1-6
   74 RANUNCULUS CIRCINATUS S 3-6
   65 CERATOPHYLLUM DEMERSUM  4-6
   65 MYRIOPHYLLUM SPICATUM L 4-6
   61 SPIRODELA POLYRRHIZA (L 1-6
   61 POTAMOGETON FLUITANS RO 1-6
   60 MYRIOPHYLLUM VERTICILLA 1-6
   56 POTAMOGETON PUSILLUS L. 1-6
   49 NUPHAR LUTEUM SM.       4-6
   43 POTAMOGETON PECTINATUS  4-6
   34 POTAMOGETON NATANS L.   1-6
   30 SAGITTARIA SAGITTIFOLIA 1-6
   30 POTAMOGETON PERFOLIATUS 3-6

   29 CALLITRICHE OBTUSANGULA 1-6
   28 RANUNCULUS FLUITANS LAM 1-6
   28 POTAMOGETON FLUITANS RO 4-6
   28 ZANNICHELLIA PALUSTRIS  1-6
   27 POTAMOGETON MUCRONATUS  1-5
   23 NAIAS MAJOR ALL.        1-6
   22 BUTOMUS UMBELLATUS L.   1-6
   22 HELODEA CANADENSIS RICH 4-6
   22 POTAMOGETON DENSUS L.   1-6
   19 NYMPHAEA ALBA L.        1-6
   18 LEMNA GIBBA L.          1-6
   17 SPARGANIUM SIMPLEX HUDS 3-6
   17 AZOLLA FILICULOIDES LAM 1-6
   16 HOTTONIA PALUSTRIS L.   1-6
   16 POTAMOGETON MUCRONATUS  3-5
   14 LEMNA TRISULCA L.       1-6
   14 POTAMOGETON LUCENS L.   4-6
   14 POTAMOGETON PUSILLUS L. 3-6
   13 POTAMOGETON CRISPUS L.  2-6
   12 NAIAS MAJOR ALL.        4-6
   12 POTAMOGETON OBTUSIFOLIU 1-6
   11 HYDROCHARIS MORSUS-RANA 1-6
   11 POTA PUSI SUBS PANORMIT 1-6

   11 POTAMOGETON TRICHOIDES  1-6
   10 RANUNCULUS TRICHOPHYLLU 1-6
   10 VALLISNERIA SPIRALIS L. 1-6
    8 SPIRODELA POLYRRHIZA (L 3-6
    7 LEMNA MINOR L.          3-6
    6 HIPPURIS VULGARIS L.    1-6
    6 UTRICULARIA VULGARIS L. 1-6
    6 RANU TRIC VAR. TRICHOPH 1-6
    5 TRAPA NATANS L.         1-6
    5 SCIRPUS LACUSTRIS L.    1-6
    5 POTAMOGETON CRISPUS L.  3-6
    4 LUDWIGIA PALUSTRIS (L.) 1-6
    4 SAGITTARIA SAGITTIFOLIA 3-6
    4 NAIAS MINOR ALL.        1-6
    4 POTAMOGETON DENSUS L.   3-6
    4 POTAMOGETON NATANS L.   4-6
    4 POTAMOGETON TRICHOIDES  4-6
    4 ZANN PALU VAR. PALUSTRI 1-6
    3 CALLITRICHE OBTUSANGULA 3-6
    3 RORIPA AMPHIBIA (L.) BE 1-6
    3 UTRICULARIA MAJOR SCHMI 1-6
    2 NASTURTIUM OFFICINALE R 1-6
    2 MYRIOPHYLLUM VERTICILLA 4-6

    2 RANUNCULUS FLUITANS LAM 3-6
    2 VERONICA ANAGALLIS L.   1-5
    2 SIUM ERECTUM HUDSON     1-6
    2 ALISMA PLANTAGO L.      1-6
    2 POTA PUSI SUBS PANORMIT 4-6
    2 POTAMOGETON X-ZIZI MERT 1-6
    1 HIPPURIS VULGARIS L.    3-6
    1 UTRICULARIA VULGARIS L. 3-6
    1 NYMPHAEA ALBA L.        5-6
    1 LUDWIGIA PALUSTRIS (L.) 4-6
    1 HOTTONIA PALUSTRIS L.   3-6
    1 RANUNCULUS FLUITANS LAM 4-6
    1 RANUNCULUS TRICHOPHYLLU 3-6
    1 BUTOMUS UMBELLATUS L.   3-6
    1 LEMNA TRISULCA L.       4-6
    1 POTAMOGETON ACUTIFOLIUS 1-6
    1 POTAMOGETON OBTUSIFOLIU 4-6
    1 SPARGANIUM RAMOSUM CURT 1-6
    1 ZANNICHELLIA PALUSTRIS  4-6
    1 AZOLLA FILICULOIDES LAM 3-6