22 VERONICA ANAGALLIS L.   1-5
   18 CALLITRICHE OBTUSANGULA 1-6
   13 CALLITRICHE OBTUSANGULA 3-6
   11 POTAMOGETON PECTINATUS  1-6
   11 VERONICA ANAGALLIS L.   2-5
    8 VERO ANAG SUBS AQUATICA 1-5
    7 SIUM ERECTUM HUDSON     1-6
    6 POTAMOGETON CRISPUS L.  1-6
    5 SPARGANIUM SIMPLEX HUDS 1-6
    5 NASTURTIUM OFFICINALE R 1-6

    4 ZANNICHELLIA PALUSTRIS  1-6
    4 LEMNA MINOR L.          1-6
    3 POTAMOGETON CRISPUS L.  2-6
    3 LEMNA GIBBA L.          1-6
    3 SIUM ERECTUM HUDSON     3-6
    3 SIUM ERECTUM HUDSON     4-6
    3 MYRIOPHYLLUM VERTICILLA 1-6
    3 MYRIOPHYLLUM SPICATUM L 1-6
    3 NASTURTIUM OFFICINALE R 3-6
    3 CERATOPHYLLUM DEMERSUM  1-6

    2 SPARGANIUM SIMPLEX HUDS 3-6
    2 VERO ANAG SUBS AQUATICA 2-5
    2 RANUNCULUS FLUITANS LAM 1-6
    2 NUPHAR LUTEUM SM.       1-6
    1 AZOLLA FILICULOIDES LAM 1-6
    1 POTAMOGETON PUSILLUS L. 1-6
    1 POTAMOGETON PECTINATUS  4-6
    1 POTAMOGETON CRISPUS L.  3-6
    1 POTAMOGETON COLORATUS V 1-6
    1 SPIRODELA POLYRRHIZA (L 1-6

    1 LEMNA MINOR L.          3-6
    1 HELODEA CANADENSIS RICH 1-6
    1 GLYCERIA ALTISSIMA (MOE 1-6
    1 OENANTHE PHELLANDRIUM ( 1-6
    1 RANUNCULUS TRICHOPHYLLU 1-6
    1 RANUNCULUS CIRCINATUS S 1-6
    1 UTRICULARIA VULGARIS L. 1-6
    1 HIPPURIS VULGARIS L.    1-6