65 POTAMOGETON PECTINATUS  1-6
   59 CALLITRICHE OBTUSANGULA 1-6
   44 MYRIOPHYLLUM VERTICILLA 1-6
   40 LEMNA TRISULCA L.       1-6
   36 POTAMOGETON CRISPUS L.  1-6
   33 POTAMOGETON MUCRONATUS  1-5
   31 MYRIOPHYLLUM SPICATUM L 1-6
   29 HELODEA CANADENSIS RICH 1-6
   27 CALLITRICHE OBTUSANGULA 3-6
   26 POTAMOGETON LUCENS L.   1-6
   24 CERATOPHYLLUM DEMERSUM  1-6
   23 LEMNA MINOR L.          1-6
   21 SPARGANIUM SIMPLEX HUDS 1-6
   19 ZANNICHELLIA PALUSTRIS  1-6

   19 POTAMOGETON DENSUS L.   1-6
   19 SIUM ERECTUM HUDSON     1-6
   17 POTAMOGETON PUSILLUS L. 1-6
   15 RANUNCULUS CIRCINATUS S 1-6
   15 NUPHAR LUTEUM SM.       1-6
   14 POTAMOGETON CRISPUS L.  2-6
   12 HELODEA CANADENSIS RICH 4-6
   11 POTAMOGETON MUCRONATUS  3-5
   10 AZOLLA FILICULOIDES LAM 1-6
   10 LEMNA TRISULCA L.       3-6
    9 SPIRODELA POLYRRHIZA (L 1-6
    7 POTAMOGETON PECTINATUS  4-6
    6 POTAMOGETON DENSUS L.   3-6
    5 POTAMOGETON PERFOLIATUS 1-6

    4 NUPHAR LUTEUM SM.       4-6
    4 MYRIOPHYLLUM SPICATUM L 4-6
    3 POTAMOGETON TRICHOIDES  1-6
    3 POTAMOGETON CRISPUS L.  3-6
    3 LEMNA TRISULCA L.       4-6
    2 POTAMOGETON LUCENS L.   4-6
    2 LEMNA MINOR L.          3-6
    2 LEMNA GIBBA L.          1-6
    2 HOTTONIA PALUSTRIS L.   1-6
    1 ZANN PALU VAR. PALUSTRI 1-6
    1 SPARGANIUM SIMPLEX HUDS 3-6
    1 POTA PUSI SUBS PANORMIT 1-6
    1 POTAMOGETON PUSILLUS L. 3-6
    1 POTAMOGETON PERFOLIATUS 3-6

    1 POTAMOGETON NATANS L.   1-6
    1 POTAMOGETON ACUTIFOLIUS 1-6
    1 SIUM ERECTUM HUDSON     3-6
    1 OENANTHE FLUVIATILIS CO 1-4
    1 VERONICA ANAGALLIS L.   1-5
    1 RANUNCULUS FLUITANS LAM 1-6
    1 RANUNCULUS FLUITANS LAM 3-6
    1 RANUNCULUS FLUITANS LAM 4-6
    1 RANUNCULUS CIRCINATUS S 3-6
    1 HIPPURIS VULGARIS L.    1-6
    1 NASTURTIUM OFFICINALE R 1-6