183 CALLITRICHE OBTUSANGULA 1-6
  177 POTAMOGETON PECTINATUS  1-6
  172 LEMNA MINOR L.          1-6
  141 SPIRODELA POLYRRHIZA (L 1-6
  135 CERATOPHYLLUM DEMERSUM  1-6
  135 MYRIOPHYLLUM SPICATUM L 1-6
   91 SPARGANIUM SIMPLEX HUDS 1-6
   72 POTAMOGETON CRISPUS L.  1-6
   70 CALLITRICHE OBTUSANGULA 3-6
   70 LEMNA TRISULCA L.       1-6
   70 POTAMOGETON LUCENS L.   1-6
   67 MYRIOPHYLLUM VERTICILLA 1-6
   64 AZOLLA FILICULOIDES LAM 1-6
   56 HELODEA CANADENSIS RICH 1-6
   50 POTAMOGETON MUCRONATUS  1-5
   48 LEMNA MINOR L.          3-6
   44 NUPHAR LUTEUM SM.       1-6
   44 RANUNCULUS FLUITANS LAM 1-6
   40 LEMNA GIBBA L.          1-6
   39 POTAMOGETON PERFOLIATUS 1-6
   35 SIUM ERECTUM HUDSON     1-6

   34 SPIRODELA POLYRRHIZA (L 3-6
   31 ZANNICHELLIA PALUSTRIS  1-6
   30 RANUNCULUS CIRCINATUS S 1-6
   27 BUTOMUS UMBELLATUS L.   1-5
   27 POTAMOGETON PUSILLUS L. 1-6
   23 NASTURTIUM OFFICINALE R 1-6
   23 VERONICA ANAGALLIS L.   1-5
   23 POTAMOGETON DENSUS L.   1-6
   23 POTAMOGETON FLUITANS RO 1-6
   23 POTAMOGETON PECTINATUS  4-6
   22 POTAMOGETON CRISPUS L.  2-6
   19 AZOLLA FILICULOIDES LAM 3-6
   16 SPARGANIUM SIMPLEX HUDS 3-6
   14 HELODEA CANADENSIS RICH 4-6
   13 POTAMOGETON MUCRONATUS  3-5
   12 LEMNA TRISULCA L.       3-6
   11 MYRIOPHYLLUM SPICATUM L 4-6
   11 POTAMOGETON PERFOLIATUS 3-6
   10 CERATOPHYLLUM DEMERSUM  5-6
    8 SAGITTARIA SAGITTIFOLIA 1-6
    8 POTAMOGETON CRISPUS L.  3-6

    8 POTAMOGETON DENSUS L.   3-6
    7 RORIPA AMPHIBIA (L.) BE 1-6
    7 POLYGONUM HYDROPIPER L. 1-6
    7 RANUNCULUS CIRCINATUS S 3-6
    7 VERONICA BECCABUNGA L.  1-6
    7 ALISMA PLANTAGO L.      1-6
    7 POTAMOGETON LUCENS L.   4-6
    6 POTAMOGETON TRICHOIDES  1-6
    5 NUPHAR LUTEUM SM.       4-6
    5 RANUNCULUS FLUITANS LAM 3-6
    5 OENANTHE FLUVIATILIS CO 1-4
    5 POTAMOGETON FLUITANS RO 3-6
    4 NASTURTIUM OFFICINALE R 3-6
    4 PHALARIS ARUNDINACEA L. 1-6
    3 HIPPURIS VULGARIS L.    1-6
    3 VERONICA ANAGALLIS L.   2-5
    3 BUTOMUS UMBELLATUS L.   3-5
    3 GLYCERIA ALTISSIMA (MOE 1-6
    3 LEMNA TRISULCA L.       4-6
    2 HOTTONIA PALUSTRIS L.   1-6
    2 RANUNCULUS FLUITANS LAM 4-6

    2 SIUM ERECTUM HUDSON     3-6
    2 ALISMA PLANTAGO L.      2-6
    2 ARUNDO PHRAGMITES L.    1-6
    2 IRIS PSEUDACORUS L.     1-6
    2 POTAMOGETON NATANS L.   1-6
    2 SPARGANIUM RAMOSUM CURT 1-6
    1 POLYGONUM AMPHIBIUM L.  1-6
    1 RUMEX HYDROLAPATHUM HUD 1-6
    1 RANUNCULUS TRICHOPHYLLU 1-6
    1 OENANTHE FLUVIATILIS CO 3-4
    1 SAGITTARIA SAGITTIFOLIA 3-6
    1 GLYCERIA FLUITANS (L.)  1-6
    1 LEMNA GIBBA L.          4-6
    1 POTAMOGETON ACUTIFOLIUS 1-6
    1 POTAMOGETON PUSILLUS L. 3-6
    1 POTA PUSI SUBS PANORMIT 1-6
    1 ZANNICHELLIA PALUSTRIS  4-6
    1 ZANN PALU VAR. PALUSTRI 1-6
    1 SALVINIA NATANS (L.) AL 1-6