146 POTAMOGETON PECTINATUS  1-6
  144 LEMNA MINOR L.          1-6
  138 CALLITRICHE OBTUSANGULA 1-6
  116 SPIRODELA POLYRRHIZA (L 1-6
  110 MYRIOPHYLLUM SPICATUM L 1-6
  106 CERATOPHYLLUM DEMERSUM  1-6
   63 AZOLLA FILICULOIDES LAM 1-6
   61 LEMNA TRISULCA L.       1-6
   58 POTAMOGETON LUCENS L.   1-6
   57 SPARGANIUM SIMPLEX HUDS 1-6
   56 POTAMOGETON CRISPUS L.  1-6
   53 MYRIOPHYLLUM VERTICILLA 1-6
   51 CALLITRICHE OBTUSANGULA 3-6
   44 HELODEA CANADENSIS RICH 1-6
   43 LEMNA MINOR L.          3-6
   40 LEMNA GIBBA L.          1-6
   39 POTAMOGETON MUCRONATUS  1-5
   36 POTAMOGETON PERFOLIATUS 1-6

   32 NUPHAR LUTEUM SM.       1-6
   32 SPIRODELA POLYRRHIZA (L 3-6
   31 RANUNCULUS FLUITANS LAM 1-6
   26 BUTOMUS UMBELLATUS L.   1-5
   25 RANUNCULUS CIRCINATUS S 1-6
   25 SIUM ERECTUM HUDSON     1-6
   25 ZANNICHELLIA PALUSTRIS  1-6
   23 POTAMOGETON PUSILLUS L. 1-6
   19 POTAMOGETON DENSUS L.   1-6
   19 POTAMOGETON PECTINATUS  4-6
   19 AZOLLA FILICULOIDES LAM 3-6
   17 POTAMOGETON CRISPUS L.  2-6
   14 POTAMOGETON FLUITANS RO 1-6
   12 NASTURTIUM OFFICINALE R 1-6
   12 HELODEA CANADENSIS RICH 4-6
   12 POTAMOGETON MUCRONATUS  3-5
   11 SPARGANIUM SIMPLEX HUDS 3-6
   10 CERATOPHYLLUM DEMERSUM  5-6

   10 LEMNA TRISULCA L.       3-6
   10 POTAMOGETON PERFOLIATUS 3-6
    9 MYRIOPHYLLUM SPICATUM L 4-6
    7 POTAMOGETON LUCENS L.   4-6
    6 RANUNCULUS CIRCINATUS S 3-6
    6 POTAMOGETON DENSUS L.   3-6
    6 POTAMOGETON TRICHOIDES  1-6
    5 NUPHAR LUTEUM SM.       4-6
    5 RANUNCULUS FLUITANS LAM 3-6
    5 VERONICA ANAGALLIS L.   1-5
    5 OENANTHE FLUVIATILIS CO 1-4
    5 POTAMOGETON CRISPUS L.  3-6
    4 SAGITTARIA SAGITTIFOLIA 1-6
    3 BUTOMUS UMBELLATUS L.   3-5
    3 LEMNA TRISULCA L.       4-6
    2 HIPPURIS VULGARIS L.    1-6
    2 HOTTONIA PALUSTRIS L.   1-6
    2 RANUNCULUS FLUITANS LAM 4-6

    2 SIUM ERECTUM HUDSON     3-6
    2 GLYCERIA ALTISSIMA (MOE 1-6
    2 POTAMOGETON FLUITANS RO 3-6
    2 POTAMOGETON NATANS L.   1-6
    2 SPARGANIUM RAMOSUM CURT 1-6
    1 NASTURTIUM OFFICINALE R 3-6
    1 POLYGONUM AMPHIBIUM L.  1-6
    1 VERONICA BECCABUNGA L.  1-6
    1 OENANTHE FLUVIATILIS CO 3-4
    1 SAGITTARIA SAGITTIFOLIA 3-6
    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 ZANN PALU VAR. PALUSTRI 1-6
    1 SALVINIA NATANS (L.) AL 1-6